Lewis appears to be an ordinary man with a regular job and a loving wife, but he carefully hides his dark past and his deeply simmering obsession with revenge against Cathy, his brother's widow, a woman whom he has come to distrust. His obsession eventually reaches a boiling point when he decides to take matters into his own hands, kidnapping her in broad daylight and trapping her in a soundproof cell in his own home, where he intends to extract a disturbing secret from her past that could destroy her entire life. With themes of revenge, obsession, and the collision of contrasting lives, this psychological thriller explores the dangers that lie hidden beneath the surface of seemingly average lives.