This was the second film of shooting star director Michael Reeve. Not as stylish or deft as Witchfinder General ( also staring Ian Ogilvy), it has a very interested premise, though hurt by inferior film quality. Karloff, in one of his final performances, gives an excellent portrayal of an ageing scientist that ruined his reputation with his advanced ideas. Now living in poverty with his wife, they are barely getting by.
He picks up Ogilvy, out look for kicks, and brainwashes him so he now is the tool of the two elderly people. Boris is working to achieve a mind-sharing, so older people can enjoy travelling and do all the things they could not. His wife is bitter by their years of poverty, and sees this as a chance to get things she could before and talks Karloff into using Ogilvy to steal a mink stole. What she finds in the mind sharing is more exhilarating. She drinks in the power of being able to do anything she wants. As her control grows, she pushing Ogilvy into killing, just to feel the rush. Only Karloff can stop her.
It is a well acted, interesting premise, worth collecting for Karloff fans, Ogilvy fans or fans of the short works of Michael Reeves.