Regression is a 2015 Canadian-Spanish-American psychological thriller horror film directed, produced and written by Alejandro Amenábar. The film stars Ethan Hawke and Emma Watson with David Thewlis, Lothaire Bluteau, Dale Dickey, David Dencik, Peter MacNeill, Devon Bostick and Aaron Ashmore.
The film had its world premiere at the San Sebastián International Film Festival on September 18, 2015.
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), after she gives a written complaint on him, but he has no recollection of the abuse. They seek the help of Professor Kenneth Raines (David Thewlis) to use an experimental technique to regain memories on John Gray 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, based on the testimony of Angela, who says that she was abused by people in masks and someone took pictures of it.
Bruce and Kenneth meet Angela’s estranged brother Roy Gray (Devon Bostick) to inquire about why he left the house. They use regression technique on him. He, too, recalls hooded figures entering his room while he was young. They suspect the grandmother, Rose Gray (Dale Dickey), has some involvement but find nothing after a search of Gray’s house.