A Nazi spy passes himself off as an optometrist in San Francisco's waterfront district. Someone robs him of his code book, and he must get it back.
John Carradine
as Victor Marlow
J. Carrol Naish
as Dr. Karl Decker
Maris Wrixon
as Freda Hauser
Edwin Maxwell
as Max Kramer
Terry Frost
as Jerry Donovan
John Bleifer
as Zimmerman
Marten Lamont
as Mike Gorman
Olga Fabian
as Mrs. Hauser
Claire Rochelle
as Maisie
Billy Nelson
as Butch
Dick Curtis
as Drunken Sailor (uncredited)