Invisible Agent (1942)

Frank Griffin Jr, the grandson of the original Invisible Man,
runs a print shop in Manhattan under the assumed name of Frank
Raymond (Jon Hall). One evening, he is confronted in his shop by
four armed men who reveal that they are foreign agents working
for the Axis powers and they know his true identity. One of the
men, Conrad Stauffer (Cedric Hardwicke), is a lieutenant general
of the S.S., while a second, Baron Ikito (Peter Lorre), is
Japanese. They offer to pay for the invisibility formula and
threaten amputation of his fingers if it is not revealed. Griffin
manages to escape with the formula. Griffin is reluctant to
release the formula to the U.S. government officials, but
following the Attack on Pearl Harbor agrees to limited
cooperation (the condition being that the formula can only be
used on himself). Later, while in-flight to be parachuted behind
German lines on a secret mission, he injects himself with the
serum, becoming invisible as he is parachuting down, to the shock
and confusion of the German troops tracking his descent, and
after landing strips off all of his clothing.


 Despite walking into Stauffer's trap, Griffin manages to
obtain the list of agents, and start a fire to cover his escape.
Griffin takes the list of agents to Arnold Schmidt for
transmission to England. Conrad Stauffer tries to hide the loss
of the list from the prying Baron Ikito, who has been staying at
the local Japanese Embassy. When Stauffer refuses to answer
Ikito's questions, the two confess to each other that German and
Japanese cooperation is not one of trust. Without revealing their
plans to each other, both men start separate hunts for the
Invisible Agent.Griffin steals into a German prison to obtain
information from Karl Heiser about a planned German attack on New
York City. Griffin returns with Heiser to Schmidt, who in the
meantime has been arrested and tortured by Stauffer. 


Heiser escapes detection and attempts to save his life and career
by phoning in Ikito's activities to Stauffer. Griffin and
Sorensen are taken to the Japanese embassy, but manage to escape
during the mayhem that ensues when Stauffer's men arrive. For
their joint failure to safeguard the list of Axis agents, Ikito
kills Stauffer and then performs seppuku, ritual suicide, as
Heiser watches from the shadows. Assuming command, Heiser arrives
too late to the local air base to stop Griffin and Sorenson from
escaping. The couple acquires one of the bombers slated for the
New York attack, and destroy other German planes on the ground as
they fly to England. Stauffer's loyal men catch up with Karl
Heiser and he is shot. Griffin succumbs to his injuries before he
can radio ahead. England's air defense shoots down their craft,
but not before Sorenson parachutes them to safety. Later, in a
hospital, Griffin has recovered and is wearing facial cream so
that he can be visible again. Sorenson appears with Griffin's
American handler, who vouches for Sorenson that she has been an
Allied double-agent all along. Sorenson is left alone with
Griffin. Griffin reveals that he is actually visible under the
facial cream, and they kiss. Sorenson happily accepts the
challenge of discovering how Griffin regained his visibility.