‘Half a Sin’ is about a man who wakes up one afternoon in an unfamiliar place, with nearly no traces of memory. His fight to discover himself leads him to do things he shouldn’t. Guilt eats away at him, but he can’t stop himself. A new and unknown personality inside him drives him to do something evil every day, and he can’t help but give in to its urges. And by the time he decides to put his foot down and find his conscience, it’s already too late.