A young oncologist is found poisoned in his own department; Chloé's support will be decisive in helping Matthieu solve an investigation echoing the recent death of one of his relatives.

The murder of a young lawyer who was devastated by the tragic consequences of his first trial leads Matthew and Chloé to a psychologist specialized in hypnosis…

When the young wife of a rich art dealer is found savagely stabbed at the edge of her swimming pool, Chloé and Matthieu are interested in the husband of the victim, a possessive 50-year-old who cannot be found.

A well-loved activist is found dead after a fire in a cheap hotel. Matthew has trouble managing Chloé’s missteps in this case, where private and public life are closely intertwined.

When the father of a teenager who has been missing for several months receives an alarming letter about his daughter, Matthew and Chloé put their disagreements aside and re-open a cold case that forces Chloé to confront the worst moments of her past.