A Harvard University student finds a strange letter that seems to be signed by George Washington. When trying to contact an expert (Prof. Chandler) to authenticate it, he is murdered but the letter disappears. Then Chandler, who does not know anything about the case, gets chased by the mafia and haunted by a TV reporter (Polly Bishop).

A successful London ad-exec hires a beautiful Hungarian girl to pose for some modeling shots, little realising that she has overheard an assassination plot and is now being hunted by some dangerous killers.