Cassie and Sunny interview the four suspects, who all deny knowing the victim. Boulting discovers Walsh was cautioned three weeks before his death, and Collier manages to locate the rest of Walsh’s body.
Season 4 premieres
on July 11 at 9PM
Crime-solving duo DCI Cassie Stuart and DS Sunny Khan, played by Nicola Walker (Last Tango in Halifax) and Sanjeev Bhaskar (Indian Summers), are back for the fourth season of this gripping mystery series. As Cassie and Sunny investigate a cold case with alarming links to the police force, a corpse is discovered in a scrap yard, his features frozen in time.
Unforgotten on Masterpiece Episodes
Unforgotten on Masterpiece Extras
S4 Ep4 | 30s
Cassie and Sunny discover Walsh was chased by all four suspects on the night in question.
S4 Ep3 | 2m 50s
New crime, new suspects. Meet the murder suspects of Season 4!
S4 Ep3 | 30s
Cassie and Sunny interview the four suspects, who all deny knowing the victim.
S4 Ep2 | 2m 27s
Nicola Walker and Sanjeev Bhaskar describe the gruesome murder in Season 4.
S4 Ep2 | 30s
Cassie and Sunny identify four potential suspects who trained as police officers together.
S4 Ep1 | 3m 42s
Join Sanjeev Bhaskar on a tour of Abbey Road Studios, where the show music is recorded.
S4 Ep1 | 1m 23s
Sanjeev Bhaskar explains the social media hype about Sunny's iconic backpack.
Get a refresher on the dramatic events of Season 3 and the harrowing finale.