When the bodies of mummified witches begin to turn up left and right, the STN-J team finds itself facing a serial murderer, who seems to be active every 40 years or so. But with the suspect of the earlier murders having been swept overboard at sea decades ago, who or what exactly are they facing now?

The STN-J must investigate a witch who has mysteriously disappeared. Investigating the places where the homeless of the city congregate, they hope to find a clue as to the location of their target. But when a regular human vagrant is driven mad by fear, they soon find themselves facing an opponent unlike any they've encountered before.