Repeat offender, 52-year-old Nishimura Masao. Three years have passed since his release, but the demon within him shows no sign of leaving. "Ahh... I want to fuck, a woman, by force, I want to do it," he wanders the streets like a sleepwalker. Suddenly, his eyes catch a "Vacant" sign at an apartment building. The next day, he appears there, disguised as a contractor. This apartment building has been chosen as his hunting ground... (From Episode 1)