A successful professor has his life disrupted by a secret from his past — in his college days he became a member of a powerful secret society, and now the society has a job for him.

Glenn Ford
as Prof. Andrew 'Andy' Patterson

Rosemary Forsyth
as Vivian Masters Patterson

Dean Jagger
as Chad Harmon

Maurice Evans
as Harry Masters

Will Geer
as Mike Patterson

Eduard Franz
as Dr. Konstantin Horvathy

William Conrad
as Bart Harris

Robert Pine
as Phillip Dunning

William Smithers
as Dr. Jerry Fielder

Logan Field
as Thaddeus Burns
CinemaSerf
Glenn Ford is quite effective in this conspiracy thriller, He is the middle-aged "Prof. Patterson" who is suddenly faced with quite a dilemma. Many years earlier, he had joined an almost Masonic style group called "The Bell". This is a pretty internecine organisation with tentacles spread throughout...