Two brothers kidnap and abuse women. Once the new woman's "training" is complete, the previous victim is released.
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".
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.
