Every 12 hours, a man loses his memory and wakes up in a new body. Each time, he has to figure out who he is all over again. This condition starts when he wakes up in the middle of a car crash in the body of someone he doesn't know, not knowing who he is. He starts to realize that his spirit is stuck in a different body every 12 hours and moves to a new one. In his desperate attempt to figure out who he is, he meets a woman who says she knows him. As he digs deeper into the mystery, he finds out about a mysterious group that seems to be after him. He needs to find a way back into his own body before it's too late.