First broadcast 13th/14th January 2020.
When the body of a teenager is found in a field near the village where he lived the team must determine if the killer is a stranger or a local.
Miranda Nolan - Sue Davis
Stanley Jarvis - Jason Forbes
Emilia Fox - Dr. Nikki Alexander
David Caves - Jack Hodgson
Sophia Di Martino - DCI Claire Ashby
Charles Babalola - DS John MacNeil
David Ganly - DI Aidan Dunn
Liz Carr - Clarissa Mullery
Richard Lintern - Dr. Thomas Chamberlain
Tom Goodman-Hill - AC Tim Holloway
Yao Chin - BBC Reporter
Robert Pugh - Robert Wilde
Asmara Gabrielle - DC Jotie Shah
Lily Bevan - Tina Forbes
Will Thorp - Peter Forbes
Andre Flynn - Malcolm Wilde
Joseph Thompson - Martin Ashby
Phil Davis - Mick/Henry Ramsden
Marc Hockley - CID Officer/Detective
Bern Collaço - Police Officer
Chris Cowlin - Police Officer
Elliot Morris - Child
Hiten Patel - PC Patel
Jag Patel - Wheelchair Patient
Jacob Trup - Resident
Sian Martin - Jane Keller
Judy Turan - Katja Nowak
Freddie Hastwel - Ben Taylor (as Freddie Thompson)
Ben Fox - Greg Brewer
Jack Meredith - Ethan
Emma Manton - Emma
Connie Kiss Mee - Zoe (as Connie Kiss-Mee)
Riz Meedin - Dave Griffin
Karl Cam - Barry Devlin (as a different name)