Kayo is a probation officer who forges ahead with her job. Continuing to work closely with ex-convicts, she is assigned to Kudo who had committed murder. As she endeavors to rehabilitate him, Kudo suddenly disappears and emerges as a suspect in a case.
A murder conviction without a body is an instance of a person being convicted of murder despite the absence of the victim's body. Circumstantial and forensic evidence are prominent in such convictions. Hundreds of such convictions have occurred in the past, some of which have been overturned. In all cases, unless otherwise noted, the remains of the victims were never recovered.