Dirección: Michael Reeves
Un matrimonio de científicos intentan descubrir los secretos de una técnica de dominio de la voluntad, y persuaden a un joven para que se someta a unos experimentos.
Boris Karloff
Prof. Marcus Monserrat
Catherine Lacey
Estelle Monserrat
Elizabeth Ercy
Nicole
Ian Ogilvy
Mike Roscoe
Victor Henry
Alan
Sally Adams
Laura Ladd
Meier Tzelniker
The Jewish Baker
Gerald Campion
Customer in China Shop
Susan George
Audrey Woods
Ivor Dean
Insp. Matalon
Peter Fraser
Detective George
Martin Terry
Tobacconist
Bill Barnsley
Constable in Fur Store
Maureen Booth
Dancer
Toni Daly
Vocalist
Arnold L. Miller
Taxi driver
Alf Joint
Ron, the mechanic
Boris Karloff
Prof. Marcus Monserrat
Catherine Lacey
Estelle Monserrat
Elizabeth Ercy
Nicole
Ian Ogilvy
Mike Roscoe
Victor Henry
Alan
Sally Adams
Laura Ladd
Meier Tzelniker
The Jewish Baker
Gerald Campion
Customer in China Shop
Susan George
Audrey Woods
Ivor Dean
Insp. Matalon
Peter Fraser
Detective George
Martin Terry
Tobacconist
Bill Barnsley
Constable in Fur Store
Maureen Booth
Dancer
Toni Daly
Vocalist
Arnold L. Miller
Taxi driver
Alf Joint
Ron, the mechanic
Boris Karloff
Prof. Marcus Monserrat
Catherine Lacey
Estelle Monserrat
Elizabeth Ercy
Nicole
Ian Ogilvy
Mike Roscoe
Victor Henry
Alan
Sally Adams
Laura Ladd
Meier Tzelniker
The Jewish Baker
Gerald Campion
Customer in China Shop
Susan George
Audrey Woods
Ivor Dean
Insp. Matalon
Peter Fraser
Detective George
Martin Terry
Tobacconist
Bill Barnsley
Constable in Fur Store
Maureen Booth
Dancer
Toni Daly
Vocalist
Arnold L. Miller
Taxi driver
Alf Joint
Ron, the mechanic