Mildly interesting concept: a girl sleepwalks a boy's dreams. Fine acting, but who are these people? Kim's characters don't inhabit the real world so it's difficult to get inside them. They're two isolated beings who exist in a 'what if?' universe. They must fall in love or never sleep at the same time. Nothing special nor thought provoking for me here. Just another movie, which is a bit of a let down from Kim.
Jin wakes up from a nightmare of a traffic accident. It drives him to the very spot and witnesses an accident, which replicates his dream. He follows the police to the suspect’s home and watches as Ran denies the hit-and-run accusation since she was asleep the entire night. Jin explains his dream to them and asks to be charged instead. He is convinced that there’s an unexplainable connection between the two. They discover that when he dreams, she acts out his dream in her sleep.