A woman finds a man in a box in front of her home and takes him in. She jokingly says she wants to keep him as her pet since the man reminds her childhood dog. The man agrees. Later the woman discovers that the man is a dance prodigy. Complications arise when her old flame from college appears.

Ki-Chul drives his friends out to a resort situated by an abandoned coal mine. His father owns the resort. When they get there, they cross paths with a spooky man who warns them about the coal mine. Later, the friends find themselves in a desperate situation and enter the tunnels of the abandoned coal mine. Will they ever see the light of day again?