Brainwash (1983)

aka’s: Circle Of Power/Mystique/
The Naked Weekend

Yvette Mimieux plays the CEO of a large corporation that runs an executive training course at a weekend retreat. While there the executives are subjected to physical and psychological abuse. Also with John Considine, Denny Miller and Julius Harris (aka: the one-armed bad guy Tee Hee in Live And Let Die (1973).