Luther investigates a the case of a fetishist who is murdering women which is similar to an unsolved case from the 1980s. The team attempt to catch the copycat killer, whose murderous spree has only just started.
第 2 集 Episode 2
播出时间：2013年7月10日
Luther's date with Mary, and the promise of romance, is interrupted by the news of another murder. The killer has struck again - the number of victims is escalating fast.
第 3 集 Episode 3
播出时间：2013年7月17日
In what looks like a gangland crime - two hoodies are shot at close range. But an un-connected crime sees Luther make a un-connected connection that might provide the real answer to what happened.
第 4 集 Episode 4
播出时间：2013年7月24日
Marwood makes his vendetta personal - targeting Luther and those closest to him, raining destruction on everything he touches. Stark and Gray arrive just in time to hurry Mary to a secret place, but is her safety really Stark's priority, or is she just a pawn in his game to lure Luther to him?
