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.

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.