Elite investigator Himio Naruko once suffered a sexual assault that left deep psychological scars. That trauma still resurfaces occasionally, tormenting her to this day. When a series of brutal rape-murders strikes, Naruko and her subordinates manage to capture a suspect. However, the man they apprehend turns out to be an imitator—the real culprit remains at large, and the investigation hits a dead end. Upon hearing news of the imitator's arrest, the true perpetrator, Momose, sets his sights on Naruko as his next target, dispatching bodyguards Kuroda, Ushiyama, and Liu to carry out his orders.