Candice works on the case of a teenage boy who is assaulted in the harbor while dealing with the complicated relationship with her teenage daughter, Emma.

Teenager Alice Fontanel turns up at the precinct house to report her mother, Magali, missing for three days; Candice thinks her disappearance may be connected to her job as a veterinarian.

The worker of a perfume manufacturer is found dead, having been sprayed with a deadly poison; on discovering that she was being watched by her employers, Candice's investigation turns to the possibility of industrial espionage.

A boat catches fire after hitting the seawall in the port of Sète; on board is the body of a lieutenant, who recently retired after a tour of duty.

Antoine is happy to be back working with his old team; a serial killer case takes Candice to her hometown and memories of a traumatic time in her life.

Candice and Antoine investigate the death of a young woman hit by a car; the lies and alibis in the case echo those in the detectives' private lives.