The Uninvited (2003)

Jeong-won is a man with no memory of his childhood and his real family. At the beginning of the film he witnesses the deaths of two young girls. He begins seeing the girls dead bodies sitting at his kitchen table. He meets Yeon, a narcoleptic who is a witness in a infant murder case. She can also see the "ghosts" and he soon finds out she is psychic and can also help him recover his lost memories.