Murder by Natural Causes
movie

Released February 17, 1979
Overview
An elaborate mystery involving a famous mentalist, his unfaithful wife who is trying to literally scare him to death, the best friend of the family, and the wife's ham-actor lover -- not only an intriguing who- (or whether) dunit, but also a literate, adult dramatic puzzle with an endless series of twists.
Cast

Hal Holbrook
as
Arthur Sinclair

Katharine Ross
as
Allison Sinclair

Richard Anderson
as
George Brubaker

Barry Bostwick
as
Gil Weston
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Bill Fiore
as
Marty Chambers

Phil Leeds
as
Eddie, Private Detective

Eve McVeagh
as
Helen Carrington

Jeff Donnell
as
Mrs. Mathews

Maida Severn
as
Garden Party Hostess
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Lloyd McLinn
as
Director

Victoria Carroll
as
Television Actress
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Jessica Rains
as
Technician
Crew

Robert Day
as
Director
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Richard Levinson
as
Writer
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William Link
as
Writer
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Richard Levinson
as
Executive Producer
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William Link
as
Executive Producer
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Robert Papazian
as
Producer
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Dick DeBenedictis
as
Music
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Jack Swain
as
Director of Photography
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Frank Morriss
as
Editor
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Richard Y. Haman
as
Art Direction
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Jerry Wunderlich
as
Set Decoration
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Art Lipschultz
as
Property Master