Having served time for an offense he did not commit, Leo Granger (George Zucco) invites his former colleagues to a remote mansion on a fog-bound island, where he has arranged devious traps to punish those who framed him for the crime. Tempted by the lure of hidden treasure, one by one his guests fall prey to the fiendish snares in his lethal game. Terry O. Morse directs this entertaining suspense film that co-stars Lionel Atwill.