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.
Five loosely connected storylines concerning the secrets and lies, the fears and tears, and the puerile potty jokes that punctuate the characters' daily (and in one eerie case, nightly) encounters.
Chara is a Japanese singer, actress and video jockey. She debuted in 1991 with the single Heaven. She is most well known for her song "Swallowtail Butterfly (Ai no Uta)", the theme song for the 1996 Shunji Iwai film Swallowtail Butterfly (in which she starred), her 1997 hit single "Yasashii Kimochi", and her collaboration with Judy and Mary vocalist Yuki, "Ai no Hi Mittsu Orange". Chara later formed a band with Yuki, called Mean Machine.