Wire in the Blood - Season 3 Episode 3 : Nothing But the Night 2008

Dr. Tony Hill has his hands full. His principal interest is in solving a string of murders where he can find no apparent connection. A child molester, a divorced woman and an elderly pensioner are all violently killed and while there are a few similarities, the cases suggests that different personalities are at work. He begins to decipher the motives when he realizes that there are two killers working together, alternating their kills. Tony also finds that a woman he's met on an airplane is stalking him and developing a whole fantasy life around him. DCI Carol Jordan ...