Spots 
At the Château de Beaulieu, Marquise de Langrune and her guests debate the urban legend of a master criminal who leaves no trace. M. Etienne Rambert scoffs at the terror the name inspires, while others recount rumors of a ruthless phantom operating across Paris. Before the night ends, anxiety takes root among the dinner party as the boundary between myth and real danger blurs.
Princess Sonia Danidoff settles into her lavish suite at a premier Paris hotel, carrying a fortune in banknotes and jewels. A polite intruder calling himself Doctor Chack confronts her in the quiet of her room, relieving her of fifty thousand francs with cold efficiency. Upon his departure, she finds a crisp calling card left behind bearing a single printed name: Fantômas.
Terror strikes the Château de Beaulieu when Marquise de Langrune is found murdered in her bed. The household wakes to chaos as the murderer slips away into the darkness without leaving an obvious entry point. Young Charles Rambert vanishes from his room the same night, leaving bloodstains on his sheets and turning suspicion immediately onto him.
Inspector Juve of the Sûreté arrives to take charge of the murder investigation, refusing to accept the quick assumptions of local police. Where local authorities see a simple domestic crime committed by a fleeing youth, Juve looks for methodical planning and hidden motives. His meticulous examination of physical evidence reveals subtle discrepancies that hint at a far more formidable mastermind.
A ruthless master of disguise terrorizes Paris while a determined detective pursues his fleeting shadow.