Single teacher Natalie was knocked death and dragged into the girls boarding school afterward. She was just denied the right to adopt, but also pregnant, both of which she kept secret. The team finds that she signed up for in vitro fertilization with a gay, steady-partnered bogus ‘fiancé’, but also that the clinic’s sperm samples were doctored. Persuing suspect Afghan refugee Hamid Darya, who falls to his death, sees Matthieu suspended by IA, yet he won’t really step back and let fellow detective Louis Meyer take charge of the search for the mastermind of many more …