Criminal Fingerprints

A worker is discovered murdered in the factory where she worked. Police suspects a serial killer nicknamed "The Strangler". Inspector Blanchard decides to call on Inspector Valour to test his original scientific analysis techniques...

Valour now runs his own lab. To test him, he is entrusted with two complex cases: one, the assassination of Prince Rosowsky in his cabin on the Orient-Express, and the other, the death of four men in a cellar locked from the inside...

Valour's unit is confronted with the case of a renowned physicist who was murdered in a brothel, and then with a body of a blacksmith covered with bruises. The unit will have to do everything it can to solve this case...

During the radio interview in which Commissioner Blanchard joins as a guest star, the host sitting right next to him dies. No one in the audience notices his sudden death. However, this is treated as a case of a murder, and the team around Julien Valor will have to work hard to solve the mystery. Additionally, the unit receives a second case, and ends up splitting in two.

A body of a woman has been found in one of the cells of the prison which only holds men. The severity of the case is high, thus making the whole unit extremely pressured. It is an imperative to act at once.

Valor has been missing for couple of days, and is a prime suspect for the murder of an opium den's owner. Léa and Cassini will do everything in their power to clear his name. In the meantime, Marius and Martello have been assigned a strange murder case: an illusionist has been killed in the middle of a show.