A gym teacher and his female student look for her missing friend. But as they investigate, they find that her disappearance is a part of a larger conspiracy.
Jang-soo is a judo instructor who is indifferent to everyone but his daughter. One day he realizes he can see Tae-jin, a ghost who used to be a devoted police officer. Tae-jin asks Jang-soo to help solve the case that took his life away from him.
A man invites a young couple to vacation on a remote island to help reignite their faltering relationship. He initially seems to be a good host but the couple starts to suspect that his true intentions are much more sinister.
