Regression is a horror-thriller film that follows Detective Bruce Kenner as he investigates the case of a 17-year-old girl, Angela, who accuses her father, John Gray, of sexual abuse. John unexpectedly admits to the crime but has no memory of it. Renowned psychologist Dr. Raines is brought in to help John recover his memories through recovered-memory therapy. As they delve deeper into the case, they uncover a dark conspiracy involving satanic rituals and discover that Angela's testimony may not be reliable. The investigation leads to a shocking revelation about Angela's true intentions and the extent of her involvement in the alleged abuse. The film explores themes of trauma, memory, and deception and raises questions about the reliability of memory and the power of suggestion.

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Some movies that have similar genres and were produced around the same time as Regression include Hereditary, The Empty Man, Escape Room, The Lie, 6 Souls, Vivarium.

Regression was released in theaters on February 5, 2016.