This edition of Christopher & Eric's True Crime TV Club takes a trip across the pond where a dignified and reserved small town British detective gives us a terrifying glimpse into one of his most disturbing cases — the Peterborough ditch murders. In the first episode of the first season of DETECTIVES: MY KILLER CASE, entitled "Joanna Dennehy Serial Killer", we're plunged into the madness of the episode's titular character.  What motivated this killer of uncompromising brutality? Christopher and Eric have strong opinions.