A scientist comes to believe that evil is a disease of the blood and that the flesh of a skeleton he has brought back from New Guinea contains it in a pure form. Convinced that his wife, a Folies Bergere dancer who went insane, manifested this evil, he is terrified that it will be passed on to their daughter. He tries to use the skeleton's blood to immunise her against this eventuality, but his attempt has anything but the desired result.
Peter Cushing
as Emmanuel Hildern
Lorna Heilbron
as Penelope Hildern
Christopher Lee
as James Hildern
George Benson
as Waterlow
Catherine Finn
as Emily
Hedger Wallace
as Doctor Perry
Duncan Lamont
as Inspector
Kenneth J. Warren
as Charles Lenny
Larry Taylor
as Chief Asylum Warder
Harry Locke
as Barman
Robert Swann
as Young Aristocrat
Jenny Runacre
as Marguerite Hildern
