Silent Witness

Nikki and Jack investigate a murder bearing all the hallmarks of a notorious serial killer. When Nikki meets Charles Beck, she discovers his wife was the suspected fifth victim of the serial killer.

When a woman's body is removed from a reservoir, Nikki confirms she is the deceased wife of pathologist Charles Beck. Jack and Velvy discover new evidence that leads to a surprising arrest.

The team works on a suspected suicide, but the investigation raises more questions than it answers. Gabriel has an exciting new opportunity, both professionally and personally, and enlists Jack's help.

Events continue to spiral at the university, and Cara becomes collateral damage. The riddle of the body in the Thames is solved.

The team investigate the body of a woman found in a flat after being dead for a year. As they seek to find out the truth of her identity, they must draw on all their forensic knowledge to solve the case.

Nikki and Jack work to uncover the truth surrounding a death and consider if it's linked to their original body. Meanwhile, DI 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, whose young pregnant wife desperately hopes is still alive. Nikki and Jack piece together the perplexing crime scene.

Nikki makes a breakthrough, but can the team believe everything they are told? The Lyell is compromised in an unexpected way as the team strive to find out who the man on the beach was and why he was killed.

The Lyell are called to King's Cross Station Museum, where they discover the bodies of eight victims entombed below. Nikki and the team know this will be a case like no other.

Nikki continues to try to identify the last of the remaining bodies, in an to find a motive, while Jack and the police begin to look into several two-decade-old missing-persons cases.