Seance on a Wet Afternoon (1964) is a film based on a superior parapsychological novel by Mark McShane.
Seance on a Wet Afternoon (1964) - IMDb
Directed by Bryan Forbes. With Kim Stanley, Richard Attenborough, Margaret Lacey, Marie Burke. A psychic convinces her weak-willed husband to kidnap the child of a wealthy couple, so she can use her abilities to locate the child and thus achieve fame.
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