The Best Episodes Written By George Kay

The police face the prospect of a multiple murderer at large in the wake of more linked murders, but the testimony of a survivor could turn the tide.

The investigation spreads to Bradford with the murder of another young woman, and a female police officer is tasked with dangerous undercover work.

When another woman survives an attack, detectives hope that they are in with a chance of finding their man as a driver in Leeds emerges as prime suspect.

The police revisit historic attacks in the hope of identifying further victims, and George Oldfield is fired up by the arrival of a letter from the killer.

Confronted with a shrewd convicted killer wanting to cut a deal, the investigators gamble on calling in a disgraced former colleague to help.

The police struggle to catch the killer of a woman murdered in Leeds, and a desperate mother is forced to make a difficult decision.

West Yorkshire Police launch a huge public appeal in the hope of rooting out the killer as some detectives begin to voice concerns about the investigation.

After a chance arrest, the killer is finally caught and the failures of the investigation are laid bare in the wake of the trial.

As a woman recounts her memories of the attack at the Bataclan, which killed her boyfriend, detectives become convinced that she's hiding something.

Years after a tragic injustice, Assane seeks to settle a score — and a debt — by stealing a diamond necklace, but the heist takes an unexpected turn.

A female assassin is taken into custody in Russia, and Eve and Carolyn head out to Moscow to negotiate access. She could hold the key to the organization that runs Villanelle. Meanwhile, Villanelle is smuggled into the same Russian jail. It's a grim and brutal place, where not even Villanelle is safe.

As time runs out, interrogators turn up the heat on a stone-faced doctor suspected of sexually assaulting and slaying his teenage stepdaughter.

Intel from Berlin points to the existence of a mole, prompting Eve to undertake her first surveillance operation. Meanwhile, Villanelle is sent to England to eliminate a member of British Intelligence. Villanelle wonders, could it be Eve?

En route to Étretat with Claire and Raoul, Assane encounters an unwelcome figure. In a bind, Assane sends a message to Capt. Laugier.

Assane confronts Commissioner Dumont and plants a decoy to divert the police. Hubert Pellegrini's connection to Babakar's fate comes to light.

A family reunion years in the making comes to pass. With Mariama's help, Assane makes a final play to stop Keller, right his wrongs and go out in style.

An unfathomable loss rocks France, but Guédira and Raoul grapple with denial. A mysterious classified ad resurrects old ghosts and long-lost hopes.

To retrieve incriminating evidence on Hubert, Assane enlists the help of a journalist. Officer Guédira connects the dots around the Louvre heist.

Increasingly suspicious, Claire launches an investigation of her own. Guédira gets the surprise — and opportunity — of a literature lover's lifetime.

Leonard tails Assane to his home. Hubert orchestrates a frame-up. Assane leaves a clue online for Guédira that sheds light on Dumont.

With scarce evidence to guide them, the investigators question an arrogant businessman accused of rape by a woman who works for him.

Assane hatches a plot to contact Comet, an inmate who steers him to a clue about Babakar's demise. Anne Pellegrini comes clean about the past.

To mend matters with Claire and Raoul, Assane devises a plan to get them out of France. But with high stakes come greater risks — and no room for error.

In a scheme to usurp all schemes, Assane and Benjamin recruit and disguise a clever accomplice in order to bring Hubert to justice.

Having identified his opponent, Assane races to protect his family and avoid retaliation. Belkacem remains wary of Guédira; Mariama sends a message.