Tokyo is in the midst of lockdown due to a new virus. Kyoko, a single woman living in an apartment building, is assaulted by a man who suddenly breaks into her home. The man is a mysterious serial rapist and murderer.

"Jack" targets a fashion model and her photographer, while the photographer's ex-wife and her new boyfriend are also drawn into the action.

The roles are reversed in this sequel to the 2016 film, with two women "raping" a man during a home invasion.

A female police officer arrests serial killer/rapist "Jack" only to have to let him go because he has an alibi. Soon after she, her boyfriend and a visiting female relative, are targeted by "Jack".

A serial killer nicknamed "Jack the Ripper" is murdering women in their own homes. While the media is reporting on his latest victims, Natsuko's husband leaves on a business trip. As soon as her husband is gone, her lover arrives for some quick sex. Then there's a knock on the door...

A theatrical troupe called "Pentagram" gets picked off one by one. Could it be related to how they raped one of their members 10 years ago?