As Narihisago faces consequences for his actions, the Kura struggles to operate. A notorious serial killer who has completely eluded the police kidnaps a 7th victim. Will a lucky break give the Kura enough time to intervene in the victim's fate?

Hondomachi leaves her interaction with missing Perforator victim Haruka Kazuta in a state of confusion. However, Hondomachi's insight leads to a stunning breakthrough in another open case.

Inami becomes acquainted with the other prisoners in the Kura. As the Wellside focuses all its attention on investigating John Walker, Hondomachi's skills are put to the test. A sudden breakthrough leaves everyone stunned.

The Metropolitan Police work on the John Walker case as the Wellside's efforts to rescue Hondomachi continue. At Chief Hayaseura's suggestion, Togo tries something unprecedented.

Narihisago continues to help Kiki Asukai. Her mysterious situtation throws doubt on what's real and what's a dream.

The brilliant detectives have to find a way to escape their id wells before they're trapped.

Before he can be arrested, John Walker throws the Kura into chaos and finds a way to escape. As the brilliant detectives try to take him down, can Momoki do anything to save the Kura?