Synopsis: Martha arrives at a scenic and well-loved lakeside cabin and discovers her boyfriend, Damian, dead. His identical twin, Janus, claims they were confronted with a break-in that turned deadly. However, something doesn’t add up to Martha. She perceives details such as a mole on the wrong side of Janus’s face, and she suspects his sketchy explanations and strange behaviour.
Tension rises, and Janus confesses to impersonating Damian in the past. He even shares the fact that he secretly dated Martha to experience what his quieter brother seemed to have to attract her. He is jealous of his brother and possessive of Martha, and the truth finally emerges: the brothers had a confrontation that ended with Janus fatally striking Damian and staging the scene as a robbery.
Realizing that her own life is in danger, while they wait for the police, Martha needs to convince Janus she will go along with his scheme. As soon as the police arrive, in a final twist, she exposes Janus, revealing both his deception and the murder. The audience is left to understand that although twins can be identical on the outside, they may be totally different emotionally and morally.
