Motion Picture Purgatory: The Sorcerers (1967)
Trembles picked an oldie but goodie for his pre-Halloween week Motion Picture Purgatory: 1967's The Sorcerers directed by Michael Reeves and starring the one and only Boris Karloff as Prof. Marcus Monserrat, a hypnotist who of course takes things a bit too far. But then again, if people didn't do that once in a while, we'd never have any horror movies!
The great hypnotist Professor Montserrat (Karloff) has developed a technique for controlling the minds, and sharing the sensations, of his subjects. He and his wife, Estelle (Catherine Lacey), test the technique on Mike Roscoe (Ian Ogilvy) and enjoy "being" the younger man. But Estelle soon grows to love the power of controlling Roscoe and the vicarious pleasures that provides. How far will she go, and can the Professor restrain her in time?