M, a mystery writer, has a girlfriend of five years named F, who disappeared on Halloween night. When a woman comes and claims to be her sister, M begins the search for his girlfriend. Along the way, the people he meets describe a woman very unlike the F he knew.

Cast: Hiroshi Abe, Machiko Ono, Chara, Kankuro Kudo, Daichi Watanabe, Yuzu Aoki