Confined to a wheelchair, a photographer spends his days observing the lives of his neighbors through his apartment window. His casual pastime takes a dark turn when he starts to suspect that one of them may be involved in a murder. Driven by curiosity and desperation, he begins to piece together clues, leading him down a dangerous path that blurs the line between reality and paranoia. As he digs deeper, he must confront the chilling truth that lurks just outside his door.