प्लॉट

A veteran high school teacher befriends a younger art teacher, who is having an affair with one of her fifteen-year-old students. However, her intentions with this new "friend" also go well beyond a platonic friendship.

Bitter, cynical, and lonely Barbara Covett (Dame Judi Dench) is a tough and conservative teacher, near to retirement, who is loathed by her colleagues and students. In the loneliness of her apartment, she spends her spare time writing in her journal, taking care of her old cat Portia, and missing her special friend Jennifer Dodd. When Sheba Hart (Cate Blanchett) joins the high school as the new art teacher, Barbara dedicates her attention to the newcomer, writing sharp and unpleasant comments about her behavior and clothes. When Barbara helps Sheba in a difficult situation with two students, the grateful Sheba invites her to have lunch with her family. Sheba introduces her husband and former professor Richard Hart (Bill Nighy), who is about twenty years older than her; her rebellious teenager daughter Polly (Juno Temple); and her son Ben (Max Lewis), who has Down's Syndrome. Barbara becomes close to Sheba, but when she accidentally discovers that Sheba is having an affair with fifteen-year-old student Steven Connolly (Andrew Simpson), Barbara sees the chance to manipulate and get closer to Sheba, hiding the secret from the school headmaster. When Portia dies and Sheba does not stay with Barbara in the veterinary office to see Ben in a theater play, Barbara plots a Machiavellian revenge against Sheba, creating a scandal and consequent turmoil in their lives.—Claudio Carvalho, Rio de Janeiro, Brazil

Barbara Covett (Dame Judi Dench) teaches history in an inner-city high school in London. She has contempt for most people in her life, including most of her colleagues and her students. She believes they, in turn, see her as what she calls "the battle-ax", someone who they don't much like, but at least respect, especially as an authority figure. She leads a solitary life, her confidantes being her cat Portia and her diary, to which she confesses all. She is keeping what she believes is a secret about her life. Close to retirement, Barbara is re-energized when Sheba Hart (Cate Blanchett) is hired as the school's new art teacher, Sheba, who has only recently returned to the workforce. Sheba is in many ways the antithesis of Barbara: relatively young, pretty, popular with the students and her colleagues, but not being able to instill any discipline amongst her students. On the surface, Sheba has a happy life, which includes an older husband, and two children, her youngest, Ben (Max Lewis), who has Down's Syndrome. But underlying the surface, Sheba feels unfulfilled, which is fostered in part by an uncaring mother. Unbeknownst to Sheba, or anyone else, Barbara has chosen her as her current focus of life. Their relationship, which is initially cordial, changes when Barbara catches Sheba in an illegal indiscretion. Again unbeknownst to Sheba, Barbara decides to use this information to get out of Sheba what she ultimately wants in life.—Huggo

Barbara Covett (Dame Judi Dench) is a lonely and bitter teacher at a high school, nearing retirement. She spends her time writing up a diary and caring for an elderly cat. When Sheba Hart (Cate Blanchett) joins the faculty, Barbara is interested in the young woman. Barbara befriends her, and Sheba invites Barbara to lunch with the family. Barbara writes up scornful remarks about the husband, and is particularly caustic about their son, Ben (Max Lewis), who has Down's Syndrome. The drama begins when Barbara discovers that Sheba is having an affair with fifteen-year-old student, Steven Connolly (Andrew Simpson). Barbara sees that she can coerce and influence Sheba. She demands that Sheba break it off. When Sheba fails to, Barbara strikes out, disclosing the affair to other faculty. The school acts, and Sheba is let go. Barbara is also fired for not disclosing the business to officials. However, we learn that there has been a history. Barbara has stalked a previous teacher, and the school is glad to get rid of her. In the spiralling crisis of Sheba's life, she is forced to move out of her house. Sheba is then manipulated into living with Barbara. However, it becomes clear that the older woman wants a romantic partner; Sheba reacts to this angrily.—Norris

Barbara Covett (Dame Judi Dench) is a veteran and cynical schoolteacher who is close to retirement. She is barely tolerated by her less brilliant and acerbic colleagues who know nothing about her private life, which consists mainly of taking care of Portia, her aging cat, and spending countless hours alone. The only means she has found to take the edge off her desperate loneliness is writing in her journal. When Sheba Hart (Cate Blanchett), a younger, attractive woman, joins the faculty as an art teacher, Barbara watches her from afar, and has nothing but caustic things to say in her diary about her clothing and her carefree manner. Despite her disdain for this woman, Barbara finds herself reaching out to her. Sheba responds by inviting her to dinner at her house to meet Sheba's lecturer husband, Richard (Bill Nighy), who is twenty years her senior, and their two children, Polly (Juno Temple), a sexy and rebellious sixteen-year-old daughter; and younger son, Ben (Max Lewis), with Down's Syndrome. Instead of opening herself up to these people, Barbara immediately sees them as competition to be beaten in the battle for Sheba's attention. Later, when Barbara discovers her new friend in a classroom having sex with Steven Connolly (Andrew Simpson), a fifteen-year-old from the school who has artistic talent, she realizes that knowledge of this secret gives her power over Sheba which she can use for her own purposes. Barbara promises to not tell anyone, but insists that the affair must end immediately. Sheba says she will, but finds herself drawn back to the boy again and again. Sheba seems uneasy with Barbara's friendship and is appalled when she discovers the older woman might have a sexual interest in her. The tenuous relationship between the two women reaches a crisis point when Barbara's cat is dying and she asks Sheba to go with her to the vet. She chooses to go with her family to see their son in a play instead. In revenge, Barbara sets in motion the scandal that will rock both of their lives in ways they never imagined.—alfiehitchie

Barbara Covett (Judi Dench) teaches history at a comprehensive school in London. Having never married and nearing retirement, she is unpopular with the students and her fellow teachers, whom she has contempt for. Barbara has been teaching at the school for 30 years and entertains no suggestions on making any changes to her curriculum as she argues that the results are "below the national average", but above the level of catastrophe.

A lonely old spinster, Barbara's only "intimate relationship" is with herself by means of a diary. Barbara's diaries are meticulously organized and managed, going back decades of her life, and being a chronicle of the most important events of her life.

Barbara has a dim view of her students and believes that she is only training the future plumbers and shop assistants of the country. She remembers that the school would confiscate the cigarettes and pornographic magazines, but now the students have moved on it knives and cocaine.

When a new, younger teacher Sheba Hart (Cate Blanchett) starts at the school, Barbara feels drawn to her and believes that she "may be the one." In Barbara, this friendship quickly turns into infatuation and obsession. Sheba is married to the much older Richard and is just re-entering the work force after devoting herself to her special needs son.

Barbara discovers that Sheba is having an affair with a student, Steven Connolly (Andrew Simpson). When Barbara confronts her, Sheba recounts all the details of her involvement with the boy but asks Barbara not to tell the school administration until after Christmas, as she wants to be with her family. Barbara claims she has no intention of reporting her providing Sheba ends the relationship immediately, but Barbara secretly plans to use the affair as a means of manipulating Sheba.

Over the Christmas break, Barbara visits her sister, who asks her about another young teacher Barbara befriended. Barbara stiffly says that the young teacher moved away. Barbara's sister asks if she has any other female "friends," strongly implying Barbara is a lesbian. Barbara insists she has no idea what her sister is talking about.

Sheba tells Steven that the affair is over yet finds herself unable to stop seeing him. Sheba does not end the affair with Steven, causing Barbara to taunt her emotionally and draw her down, leading her to end the affair with Steven. In months passing, Barbara's grasp on Sheba slowly starts to take hold, with Barbara manipulating and emotionally blackmailing her, causing her attentions to be divided between her family and Barbara.

When Barbara's cat dies and Sheba's loyalties are easily divided, Sheba's husband Richard (Bill Nighy) shouts in anger that her friend is being an evident pain and that his wife is being twisted by Barbara. When Sheba refuses to give in to Barbara's increasing demands on her time and attention, Barbara reveals the secret to a male teacher who has told her that he is attracted to Sheba. The teacher informs the student's parents and the school. After the affair becomes public, the headmaster accuses Barbara of knowing about the affair and not notifying the authorities. He also learns that a former teacher at the school, the young woman Barbara mentioned at Christmas, had taken out a restraining order against Barbara for stalking her and her fiance.

Mrs. Connolly then comes to Sheba's home and hits Sheba. Afterwards, Sheba and Richard bitterly argue. In Barbara's voiceover, she reveals she is glad that they are arguing, knowing that Sheba will come to her for comfort, which had been Barbara's plan to start with. The next day, the media, as well as the school administration, are alerted, and Sheba's affair and her life are turned upside down by the collapse of her marriage, the destroyed relationship with her children and the loss of her job.

Barbara is fired from the school after denying to the headmaster that she knew of the relationship. He confronts her with a copy of a restraining order taken out against Barbara by another fellow teacher whom she had previously befriended.

Sheba's husband asks her to move out of their home, so she moves into Barbara's house, unaware that Barbara is the reason she was found out and believing the affair became known because Steven confessed it to his mother. Sheba soon finds Barbara's diary and learns that it was Barbara who leaked the story of the affair, on account of the rather sexual attraction Barbara seems to have for her. When Barbara returns from a shopping round, she is confronted by a furious Sheba, who strikes her in anger. Barbara says she has done her a favor by getting her out of a hopeless marriage.

The two of them continue to shout and fight with one another, and Sheba claims that Barbara never really liked her, but in fact manipulated her for her own personal needs. Sheba runs outside with Barbara's journal, to streams of reporters and photographers. She shouts at them in a deluded fashion but becomes hemmed in by a crush of reporters and photographers, at which point Barbara rescues her. Sheba's emotions spent, she quietly tells Barbara that she had initiated the friendship because she had liked her (Barbara) and they could have been friends. Barbara says she needs more than a friend.

Sheba leaves Barbara, placing the journal on the table as a mute reminder that she had kept its contents secret, and returns to her husband. Sheba returns to her family home. Richard answers the door. The two face one another silently for several moments, and then Richard allows her to enter. Sheba is sentenced to 10 months. However, it is strongly implied she is reconciled with her family.

The last scene is Barbara meeting another younger woman who is reading a newspaper reporting the Sheba Hart affair. Barbara says she used to know Sheba, but then downplays the relationship by acting as if they hardly knew each other. Barbara quickly introduces herself, and the other woman introduces herself as Annabel (Anne-Marie Duff). The pair continue to talk. Barbara mentions attending a classical concert and invites Annabel to join her.