Line of Duty - Season 6 Episode 7
With time running out, AC-12 attempt to unmask 'H', the Fourth Man (or Woman) commanding the network of corrupt officers behind the murder of Gail Vella. But sinister and powerful forces appear intent on orchestrating a cover-up.
- Genre: Crime, Drama, Mystery
- Studio: BBC One, BBC Two
- Keyword: police, dirty cop, internal affairs, police corruption, procedural, anti-corruption, police procedural
- Cast: Martin Compston, Vicky McClure, Adrian Dunbar, Gregory Piper, Nigel Boyle, Kelly Macdonald