Frank Lloyd Productions (USA): 1

Invisible Agent (1942), an American action and spy film directed by Edwin L. Marin with a screenplay written by Curt Siodmak, follows the story of Frank Griffin Jr. He is the grandson of the original Invisible Man, who now operates a print shop in Manhattan using the name Frank Raymond. Late one night, four armed individuals enter his shop and reveal their identities as foreign agents working for the Axis powers. Among them are Conrad Stauffer, an S.S. lieutenant general, and Baron Ikito, a Japanese agent. They demand to obtain the invisibility formula and threaten harm if it is not handed over. Despite managing to flee ...