Balthazar

Balthazar has a great time on an ice-driving circuit, a reckless pastime he's enjoyed since his life was upended seven months ago; on his flight back to Paris, several passengers have convulsions after being poisoned.

While Balthazar fends off questions from his psychologist, who wants him to open up about his traumas, he's called in on a case.

As Balthazar kills time by hacking into the police radio, 6-year-old Anaïs is abducted from her room in the middle of the night.

After three teenagers are beaten to death in a car scrapyard, seemingly in retaliation for petty thievery, Balthazar believes the main suspect is a psychopath.

Trying his best to avoid Olivia Vésinet, who recently stole his job, Balthazar delivers a lecture at the medical school, with Eddy and Fatim in attendance.

When documentary filmmakers arrive to report on the Forensic Institute in Paris, the mood there turns positively chilly; Eddy and Fatim are no longer speaking, Camille hates being filmed, and Vésinet and Balthazar are openly at war.