6 Season
36 Episode
Line of Duty - Season 4 Episode 1
If you think catching criminals is tough, try catching police officers.
DCI Roz Huntley is under intense pressure from her superiors to apprehend a serial murderer after months of fruitless investigation.
- Year: 2021
- Country: United Kingdom
- Genre: Crime, Drama, Mystery
- Studio: BBC One, BBC Two
- Keyword: police, dirty cop, internal affairs, police corruption, procedural, anti-corruption, police procedural
- Director: Jed Mercurio
- Cast: Martin Compston, Vicky McClure, Adrian Dunbar, Gregory Piper, Nigel Boyle, Kelly Macdonald