It's finally Léo's first day of daycare, and Morgane arrives at a crime scene where the victim was a carpooler when suddenly, she sees Karadec arrive... with their baby! But who brings their children to a crime scene, our consultant is offended! And yes, the commander is having trouble cutting the cord, much to the dismay of Morgane, who has seen it all. While untangling this story of cigarette poisoning, estranged cousins, and a dog shelter, our two heroes could well be troubled by their new relationship as co-parents.