 Archaeologist Dr. Burnet (Eric Portman), his daughter Anne (Wanda Hendrix) and newspaperman Nicholas Chapman (Van Heflin) set out to search for the priceless golden mask of Moloch, believed to be in a lost tomb. Two crooks, Kress (Jacques Brunius) and Petris (Charles Goldner), use schemes, tricks and ruses to raise havoc in order to get the mask for themselves.