Allard, a former police officer who is battling cancer, realises that several recent killings bear a striking similarity to one of his past cases. Together, he and Cain vow to locate the culprit.

When a company finds itself in trouble, its employees are willing to do what they can to help revive the failing business and safeguard their jobs. But how far will they go? Cain needs to find out.

The body of a suspected paedophile is found. Cain is determined not only to locate the killer but also to discover whether the victim was really a child abuser or just a casualty of the rumour mill.

A man who succumbs to his taste for sado-masochism, a criminology student who collects lovers, a jealous brother, a dangerous boyfriend - all are hiding guilty secrets, but Cain must expose the truth

When a violent gambling addict is found dead, Cain's investigation leads him to a former champion kick-boxer who runs self-defence classes for women but has some unorthodox teaching methods

At first glance, the robbery of a jewelry store seems trivial. But Cain thinks the case goes beyond what it seems ...

Cain's son Ben falls in love with Amandine and is welcomed into her family with open arms. But when Ben's future mother-in-law turns up dead, he finds himself accused of drug dealing and murder.

Accused of murdering his girlfriend's mother, Cain's son Ben must prove he is innocent, but all the evidence appears to be stacked up against him. Cain needs to find the real murderer, and quickly.

When a woman and her daughter are abducted at gunpoint, Cain thinks the family is involved. Meanwhile, Lucie and Borel feel the heat when they're investigated about Carsenti's death.

Cain and Lucie team up to solve the brutal murder of Lea Legendre, a 17-year-old student. The investigation leads them to Etienne Courcelles, an unorthodox and manipulative media professor.

Lucie is shot in the neck while she is waiting for a date but no one sees who fired the shot. In a fury of fear, Cain pulls out all the stops to find the culprit while Lucie is on the operating table.

Joelle Lester, the director of the clinic where Lucie was treated, is found dead. Joelle's sister Charline is sure she was the real target. Did the killer make a mistake? Cain and Lucie have doubts.

The body of a student who lived a secret life as a prostitute is fished out of the water. Cain tracks down some shady characters, not the least a Mafia boss who thinks he is untouchable.

Lucie is forced to participate in a deadly act and her life is on the line as she could be exposed at any moment. Meanwhile, Cain wants to catch Virandelles red-handed.

A criminology student falls from the roof of his campus. Cain discovers that the trail leads to a famous criminology professor, Anna Becker, who has far too much influence over some of her students.

Who gains when star dancer Cyril is poisoned during a performance? Suspects include a rival dancer, the Balletmaster and Cyril's lover who is worried he'll leave her. Cain digs deep to find out.

A fatal motorbike accident on a treacherous road reminds Cain of his own accident. But the similarity ends when Cain finds that someone has tampered with the bike's brakes.

Balducci, the psychopath who's been stalking Sonia, is under arrest and gruesome discoveries at his home connect him to crimes in Corsica. Can Cain and Lucie get him to Corsica in one piece?