Nikki and Jack investigate murder resembling notorious serial killer's work. Meeting original coroner Charles Beck, Nikki learns his wife was suspected a victim, but disbelieved when claiming he knows her body's location.
When a woman's body is removed from a reservoir, Nikki performs the post-mortem and confirms she is the deceased wife of pathologist Charles Beck. Jack and Velvy discover new evidence that leads to a surprising arrest.
The team pieces together the mystery of a man found dead on the shore of the Thames, while the life of a disgruntled criminology professor begins to unravel.
Nikki and Jack work to uncover the truth surrounding Roy's death and consider if it's linked to their original body. Meanwhile, D.I. Torres searches for a stalker and Cara is shocked at Velvy's living conditions.
The team investigate the death of a Burmese man on a deserted beach, as his young pregnant wife desperately hopes he is still alive. Nikki and Jack piece together the perplexing crime scene and find it poses more questions than it answers.
