a special edition of the intruder series! a couple who were held captive by a serial female assault murderer. it was tatsuhi tanigawa, another intruder who appeared later, who saved the two. a serial female assault murderer suddenly broke into the house of a couple who were living happily. by chance, taniguchi, who was aiming to be a burglar, also broke into the scene. taniguchi suddenly fought with the assailant and accidentally killed him. as a result, the couple who were saved by taniguchi ended up sheltering taniguchi in their house for a while... and so a strange life of three people began...