Three or four drops a day can relieve the patient ...of her fortune

A psychiatrist plots to murder his wife so he can be with his mistress, but his wife mysteriously disappears before he can carry out his plan.

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Main Cast: Christopher Lee, Jon Finch, Judy Geeson, Dilys Hamlett, Tony Beckley, Jane Merrow, Colin Jeavons, David Trevena, Adrian Cairns, Daphne Neville

Director: Sidney Hayers

Writers: Ben Roberts, Ivan Goff

Editor: David Williams

Cinematographer: Bob Edwards

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