Professor Marchand, a renowned scientist, vanishes, and Commissioner Juve accuses Fantomas. Meanwhile, a journalist, disguised as Marchand's assistant Fandor Lefevre, is kidnapped by Fantomas. As Juve becomes trapped, Fantomas also assumes Lefevre's identity, leading to a confrontation in Rome at a scientific conference. With the organ music of Fantomas, the situation becomes dire, leaving prisoners with seemingly no escape from their fate.

Info about Fantomas Unleashed
Studio(s): Gaumont, P.A.C.
Originally Released: United States, Dec 20, 1965
Production Countries: France, Italy
Fantomas Unleashed: Where to Watch Online in United States?
At the present time, viewers have the opportunity to enjoy "Fantomas Unleashed" completely free of charge, though with occasional advertisements, on the following streaming platforms: Tubi TV, Plex.