Dark Trade a gripping crime thriller full of twists

A teenager is found dead, stabbed through the heart by a professional killer. Detective Stephen Greco and his team must find out who the victim was, and work to piece together the backstory. Then, “The Knifeman” strikes again, leading DCI Greco into a depraved world of exploitation. How is drugs baron, Vinny Costello, involved? What is the connection with a private clinic that provides plastic surgery for the elite?