In 1983, high school educator Ji-hwan is assaulted by a pick pocket. During a pursuit, homicide detective Gun-woo is taken in 2015 and loses awareness. Both of their hearts stopped, and both men are accepted to the exact same hospital at schedules and start again at precisely the exact same time. A force binds them together, letting them see within their fantasies through one another's lives. Realizing that the women they love resembles each other and they come in threat that is mortal, change her fate and both men must form teams to follow the last.