Silent Witness Season 21 (2018)

Trailer
Returning from her ordeal in Mexico Nikki seeks out her friend fellow pathologist Sally Vaughan for support but three days later Sally disappears after a contentious visit from colleague David Cannon who is anxious to buy her lab. Thomas invites David to join his team after family man Livtar Singh is found dead in a reservoir, a suspicious death made to look like a suicide but Nikki finds David's behaviour odd and follows him as he meets a woman in a pub. As evidence suggests Livtar's infidelity Sally's blood-stained phone is traced to the remote farm-house of Angus Merrick but he is wounded in a police shoot-out and Sally is not there.