When a woman begins seeing a mysterious man who challenges her to a series of tests, she enters the dangerous and dark side of online dating.

Takahashi moves into a new apartment after a divorce and as she tries to settle in, finds that she is having strange and violent dreams and weird things keep happening in her apartment. Her neighbour likes to listen to her through the wall, and becomes increasingly sensitive to her thoughts and feelings. A scientist father and son also live in the building; the son has an obsession with prosthetic body parts.

A look back at a director's life with his neurotic mother.

In homage to spooky slumber party games, the girls eat a haunted piece of candy, and it becomes a race to see what will get them first — the black-gloved killer stalking them, the evil unlocked from the candy, or any of the other perils that await girls at sleepovers in horror films.

Erotic-drama distributed by Nikkatsu for home video.