Nina and Lucas, newlyweds, are searching for their dream home when they come across an isolated mansion, formerly owned by Dr. Victor Lemaitre, a psychiatrist who mysteriously disappeared. A snowstorm traps them in the mansion, and Nina discovers a secret room filled with recordings of Lemaitre's sessions with his patients. Through these tapes, they uncover the doctor's twisted psychological manipulations and clues about his disappearance.

The disturbing revelations test their relationship, especially when Nina discovers a hidden connection between Lucas and Lemaitre. Supernatural events and dark truths emerge, leading to an explosive confrontation. The storm eventually subsides, but they must face the consequences of their discoveries. Years later, haunted by their experience, Nina writes a book to share their story.