The fourth installment to this surprisingly hit franchise gets Tamannaah on board to be Sundar C's new sister turned ghost. This time around it's Baak, a shapeshifter aiming to become Immortal and it's prey are 3 souls. Lawyer Saravanan is an honest guy, living with his aunt while missing his estranged sister Selvi. He is informed of Selvi and her husband's death, with her elder daughter fallen into coma. He arrives at the village to look after the kids and figures out that his sister and her husband's deaths were murder and the comatose daughter is one of the target of Baak. How does he save the girl and what help he gets on the way to defeat the Baak, forms rest of the story.
The positive is obviously the introducing of the shapeshifting demon and thankfully the heroines aren't used as just glam-dolls though Raashi Khanna as Dr. Maya doesn't get much to do. With Tamannaah as Selvi holding the film together in the key scenes, rest of the film is like the other 3 films in the franchise and the distasteful outdated comedy, pulls the film down big time. None of the comedy scenes were remotely funny and it didn't surprise at the bunch of talented comedy actors getting typecasted again. The poor vfx doesn't help either. The cameos in the climax had the correct placement. With the scenes getting lifted off especially from Marvel's recent two films, this no logic only magic driven franchise, may work with it's fanbase but for the rest, it's just another Aranmanai film with a new ghost.
