Dr. Laurence, a once-respectable scientist, begins to research the origin of the mind and the soul. The science community rejects him, and he risks losing everything for which he has worked. He begins to use his discoveries to save his research and further his own causes, thereby becoming ... a mad scientist, almost unstoppable.

Boris Karloff
as Dr. Laurence

Anna Lee
as Dr. Clare Wyatt

John Loder
as Dick Haslewood

Frank Cellier
as Lord Haslewood

Donald Calthrop
as Clayton

Cecil Parker
as Dr. Gratton

Lyn Harding
as Prof. Holloway

Clive Morton
as Journalist

D.J. Williams
as Landlord
CinemaSerf
Boris Karloff ("Dr. Laurience") is once again in well trodden guise as a scientist - long shunned by his peers for ideas none too ethical. He employs Anna Lee ("Dr. Wyatt") as his assistant, despite her being advised against it by colleagues and her rather wooden beau John Loder ("Dick Haslewood"), ...