A film about Tsumugi Akari is a female investigator who is investigating a murder case by using her victims as an experiment for the aphrodisiac they are preparing. The unintended consequence was that this drug made them have crazy sex until they died, everything was carefully staged like a stroke to death. The mastermind is trying to hide all the evidence he has, but Tsumugi accidentally finds out, he secretly follows and sees her reading the secret document, so he secretly kidnaps her.