London Kills

The detectives investigate a string of murders, could the killer be a police officer? Meanwhile, Rob is forced to hand over vital evidence when his family is put in danger.

As the detectives investigate the death of a schoolboy, Vivienne is forced to reveal her intimate connection to a suspect in an ongoing case.

As Billie comes face to face with a tragic moment from her past, Vivienne pleads with her ex-husband to do the right thing.

The detectives lock horns with a widow who refuses to grieve. Elsewhere, actions have fatal consequences.

The detectives race against time to stop the killer. Meanwhile, David and Vivienne cross a huge line - both professionally and personally.