- HD 1080
- Runtime: 111m.
- Status: Released
- 1
- Languages: en
- Country: United Kingdom
- Director: Bryan Forbes
- Stars: Kim Stanley, Richard Attenborough, Margaret Lacey, Marie Burke, Maria Kazan
- keywords: london, england, husband wife relationship, based on novel or book, ransom, kidnapping, medium, working class, black and white, mental illness, occult, séance, british new wave, loss of child, stillbirth
- Production_studio: Allied Film Makers, Beaver Films
- Slogan: Was it magic... Or murder they planned?
- providers: Max, Max Amazon Channel, Criterion Channel
- The Seance on a Wet Afternoon is featured in the top rankings of 1964
- #29 in Top Drama Movies of 1964
- #7 in Top Crime Movies of 1964
- #11 in Top Thriller Movies of 1964
Working-class British housewife Myra Savage reinvents herself as a medium, holding seances in the sitting room of her home with the hidden assistance of her under-employed, asthmatic husband, Billy. In an attempt to enhance her credibility as a psychic, Myra hatches an elaborate, ill-conceived plot to kidnap a wealthy couple's young daughter so that she can then help the police "find" the missing girl.