Bloodline

When a young boy discovers a man's body lying in a doorway, DI Burton and DS Fielding are called to the scene. Believing the man was homeless, the police are shocked to discover the true identity of the victim; a Detective Constable from London who was working undercover.But when the DNA from the victim is linked to a cold case Burton and Fielding find themselves looking into another unsolved murder.And as the case unfolds, the detectives are faced with unpicking through a web of lies and deceit. But can they solve the murders before any more blood is spilt?