Watch Nightmare Detective
- 1 hr 46 min
A mysterious killer known as O is on the loose. She has the apparently supernatural ability to kill people by talking to them over the phone. At a loss, the police divide their forces in an effort to stop her. Half of them attempt to track her down in a traditional investigation, while another team looks into the possibilities that O does have some kind of supernatural powers. This teams seeks the help of the Nightmare Detective, a man with the power to enter people's dreams, in the hopes that he can stop whatever mystic force she uses.