1787, France. While investigating a series of mysterious murders, Joseph Guillotin - the future inventor of the world famous ‘Guillotine’ - uncovers an unknown virus: the Blue Blood. The disease quickly spreads amongst the French aristocracy, driving them to murder ordinary people and soon leads to a rebellion.

Amir el Kacem, Marilou Aussilloux, Lionel Erdogan, Isabel Aimé González Sola, Julien Frison, Mamadou Doumbia, Dimitri Storoge, Amélia Lacquemant, Coline Beal, Laurent Lucas, Philippine Martinot, Gaia Weiss, Matthias Jacquin, Nina Tantimonaco, Chiara Tantimonaco