is called in to investigate. Walter does an autopsy and discovers that the injury was inflicted by a human bite; the wound is infected by a rare genetically modified syphilis virus and all the spinal fluid has been drained. Tracing users of the virus leads the team to a scientist with connections to ZDF. His story leads the team to find more victims and a desperate race against time to track down a killer with a dangerous addiction to human spinal fluid. All Rights Are Those Of Fox Network ...