A vampire attacks a horror author on the street and then invites him to a nearby club as a gesture of gratitude, which turns out to be a meeting place for assorted creatures of the night. The vampire then regales him with three stories, each interspersed with musical performances at the club.

Sixth film in the Boy Detectives Club series.

Having abandoned modern civilization, Ryoichi lives an isolated, self-sufficient life on a snow-covered mountain and sends mail bombs to the CEOs of corporations and TV networks. One day, he encounters a mysterious creature in the forest. That night, his older brother, who had committed suicide, appears before him at his cabin. The apparition takes Ryoichi beyond a door, where Ryoichi learns the truth about his family.