The film takes place in Minnesota, in 1990. Detective Bruce Kenner (Ethan Hawke) investigates the case of John Gray (David Dencik), who admits to sexually abusing his 17-year-old daughter Angela (Emma Watson) but has no recollection of the abuse. They seek the help of Professor Kenneth Raines (David Thewlis) to use recovered-memory therapy on John Gray to retrieve his memories, and come to suspect that their colleague Detective George Nesbitt (Aaron Ashmore) is involved. They detain him but fail to find evidence against him. Detectives suspect a satanic cult is involved because of Angela’s testimony, in which Angela says that she was abused by people in masks and someone took pictures of it. Regression 2015 full Movie
Bruce and Kenneth meet Angela’s estranged brother Roy Gray (Devon Bostick) to inquire about why he left the house. Using the regression technique on him, he recalls hooded figures entering his room while he was young. Bruce and Kenneth suspect Roy’s grandmother, Rose Gray (Dale Dickey), has some involvement but find nothing after a search of her house.
Meanwhile, Bruce begins having nightmares involving satanic rituals. Angela tells him that the cult is out to kill her as she has shown her demonic mark to him and that he is in danger as well. She tells him that her mother received miscellaneous calls and saw strange figures staring at her in the street before she met with an accident. Bruce starts to experience the same things and his nightmares increase in intensity.
Rose jumps from the window of her house after seeing ghostly figures, injuring herself. Bruce meets Angela in the church’s cemetery to reassure her and after an emotional outburst, she kisses him. Shocked, Bruce leaves her there and returns to his home. He sees a soup advertisement on the street and recognizes the woman in it as the one he sees in his nightmares. He concludes that his imagination has run away with him.