Balthazar Sezon 4 Odcinek 5: Dernier recours

Trying his best to avoid Olivia Vésinet, who recently snatched his job, Balthazar delivers a lecture at the medical school, with Eddy and Fatim in attendance. Suddenly, he's taken hostage by a student named William, who claims his father was wrongly accused of killing his mother. Balthazar must do all he can to uncover the truth, while Camille and the SWAT team get ready to intervene.