The Mysterious Woman's True Identity and Her Resolve

"A police officer is stabbed to death on the hospital grounds." Hiroki (Shison Jun) and Mankoto (Kishi Yukino) are investigating a serial murder case called the Eye of Horus murders. Just as they get closer to the truth, detective Owada (Nekobe Tsubaki) is murdered by someone. The murder weapon raises the possibility that the murderer is the same as Horus. Masanori (Shirasawa Jin) becomes even more suspicious of Hiroki, who has no alibi... Mankoto tries to turn a blind eye to her suspicions about Hiroki, but she eventually finds out about the relationship between Hiroki and Mikuru (Saito Asuka)...!? Their brutal past is revealed!!