Conan, Ran, Sonoko and Masumi are walking through the woods to a villa where Masumi’s brother was called to investigate the mysterious Red Woman, a person who is reputed to be haunting the area. They meet with a group of friends, Tamami Minegishi, Sumika Kawana, Masaie Hakuya, and Jinsuke Ninda who are there at to the villa to pay respects to their friend Satoko. It is believed that Satoko was murdered by the Red Woman after her corpse was pulled from the nearby swamp.