“The light faded to black and she vomited. Her limbs twitched a few times and then there was nothing.” When Mark Cook walks into Northolme Police Station to report his wife missing, Detective Sergeant Catherine Bishop, still reeling from the repercussions of her previous case and her lover's betrayal, has no reason to believe that Lauren is in danger. But then a horribly mutilated body of a young woman is discovered by Moon Pond and the officers are drawn into the murky world of drug mules, where nothing is as it seems. Catherine and her colleagues are running a race against time to track down the traffickers and discover what has happened to Lauren.