During her police exam, Morgane ditches protocol to share her last case with Karadec. Past memories blend with investigation details as she races to save him, her future in law enforcement hanging in balance.

A luxury hotel director from Bruges is found dead in France. Morgane and Karadec investigate this border case while their relationship seems over, leading to unexpected events in Flanders.

Troubles mount at DIPJ Lille. Morgane fails her exam, Karadec's linked to her mother-in-law's death, and Céline's son faces murder charges. Removed from the case, she arranges a Murder Party to prove his innocence.

After a breakup, Morgane and Karadec probe an e-sports champion's murder while dealing with family drama. Her father's ex-wife's harassment, and Léo's toy. Meanwhile, Céline pushes Morgane to take the police exam.

After receiving bad news about her father, Morgane takes a train trip where she notices suspicious signs of a possible kidnapping, while trying to avoid Karadec who may reenter her life.

A psychic reports a future assault at DIPJ, then becomes a murder victim. As Morgane and Karadec hide their relationship at work, Daphné explores spiritualism. A seeming hoax evolves into a killer's pursuit.

At a crime scene, Morgane's shocked when Karadec shows up with their baby from daycare. While investigating a carpooler's death, they navigate co-parenting amid a case of poisoning, family feuds, and a dog shelter.

After Léo was born, Morgane moved with her four children to Karadec, with whom she is now a co-parent and roommate. After parental leave, our two heroes return to work.