Intruder Intruder Series Special Edition! A couple is held captive by a serial rapist and murderer. The two are saved by another intruder who appears later, Atsushi Tanigawa! A serial rapist and murderer suddenly burst into the home of a couple living happily together. By chance, Taniguchi, who was targeting the house for burglary, also entered the premises. In a sudden struggle with the rapist, Taniguchi accidentally killed him. As a result, the couple, who were saved by Taniguchi, ended up hiding him in their home for a while. ... And thus began the strange life of the three of them...