One night at a party at the Fichaud office, housekeeper Macha, witnesses an increasingly disturbing flirtation between her colleague Gaby and one of the lawyers working there.
Macha invites Gaby to spend the night at her house. Upset and angry, the girls come up with a plan to make Manu pay. The next day, at the lawyers, a condom left on the floor gets everyone talking.
After being promoted, Manu tries to save face and silence his story with the maids, while they return to work, determined to put their plan into action.
After revealing the details of their correspondence to Gaby, Macha offers to go and confront Manu to clarify the situation and restore order. Back at the office, things do not go as planned.
The lawyers, victims of vandalism by feminist activists, are being fitted with a new security system. Macha and Gaby meet the installer under very funny circumstances.
Accompanied by Gaby, Macha returns to her hometown to face her demons. This journey leads the duo to an exhilarating takeover. Marie-Pierre receives a disturbing letter.
Outraged by Macha's letter, Manu surprises the girls at work and confronts them in a verbal joust where the lawyer has more than one trick up his sleeve. His plea finishes off his opponents.
Scalded by Manu's plea, the girls pull away from each other. Gaby tries to reconnect with Brittany, while Macha gets a call from the detective sergeant assigned to her case.
On Halloween, Colin Brault is acquitted. This verdict plunges Macha and Gaby back into an indignation that is doubled by mind-boggling news. Their thirst for revenge returns at a gallop.
With nothing to stop them, the girls take their revenge. They put Manu through the wringer. Now the roles are reversed; Macha and Gaby become the executioners.
