After failing to catch Jack the Ripper, Inspector Reid leads the "H" division, the toughest police district in their part of London.

Haunted by the failure to catch Jack the Ripper, Inspector Edmund Reid is charged with keeping order in the blood-stained streets of Whitechapel. Reid and his men find themselves fighting to uphold justice and the rule of law. But always in the background lurks the gear of the Ripper.

Commander Dalgliesh undertakes a highly sensitive murder investigation at the Dupayne Museum. The circumstances of the case bear an unsettling similarity to the historical cases commemorated in the museum's notorious Murder Room

Underdog detective 'Dangerous' Davies toils at a small London police station, where his slicker colleagues taunt him and his boss calls him the last detective he would put on a big case. That makes it all the sweeter when he cracks the big ones anyway

DS Jack Weston and DC Charlie Steele are shocked when their boss, DI Martha Bellamy, is shot dead in her home. DCI Daniel Drummond joins Jack and Charlie to lead the investigation into Martha's murder, also bringing in detectives Alisha Brooks and Gary Roscoe. The new team soon realizes that Martha's murder could be connected to a cold case she was investigating. Could one of those suspects have killed her?

Season two has Lindsay Denton, a member of AC12, a police anti-corruption unit, charged with investigating an ambush of a police convoy.

When the battered body of a French student is found on Twickenham Green in London, hardworking and humble DCI Colin Sutton is appointed the lead detective on his first big case. Despite objections from his superiors, Sutton believes the young woman's murder may be connected to a previous attack and embarks on a quest to catch a serial killer. Realistically portraying the ins and outs of police investigations, it tells the story of one detective's...

Detective Chief Inspector Tony Gates is an exemplary cop. He's got the best crime stats on the force and a loyal team working under him. But the head of the police anticorruption unit, Superintendent Ted Hastings, has his doubts about Gates. Is he really that good? And more importantly, is he really that clean? Hastings decides to find out and all on a new arrival to his department, Detective Sergeant Steven Arnott to help him do it. As the net tightens...

Fresh off his success catching a headline grabbing killer, DCI Colin Sutton is on the brink of retirement when he's asked to review the long running inquiry into another infamous predator. Known as "The Night Stalker" to the press and "Minstead Man" to the police, this serial rapist has stalked the elderly of Southeast London for nearly two decades.