Chloé, a young and fragile woman with proneness to depression begins to frequent psychotherapy sessions and soon falls head over heels for her psychologist, Paul. After the fresh lovers move in together, Chloé begins to unveil increasing inconsistencies in Paul’s past until one day she quite by chance discovers the existence of his identical twin brother, Louis. Why does Paul stow his brother away from the world? What is the age-old secret that simultaneously connects and divides them? And did Chloé really meet his twin brother or is it just an elaborate lie that is supposed to help Paul hide his darker alter ego?