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Jessica finds herself in a tough spot when one of the auctioneers of a diary is murdered and she has to rely on Harry McGraw to help her out.
The title is from the old proverb: "One good turn deserves another."
Hurd Hatfield also starred in The Picture of Dorian Gray (1945) with Angela Lansbury. Lansbury played Sybil Vane.
Jean Vander Pyl, the voice of Wilma Flintstone, has a cameo appearance in the opening scene, playing a fan requesting an autograph.
Harry's name is revealed to be 'Harlan A. McGraw'.
Jessica ( Angela Lansbury ) and William Readford ( Hurd Hatfield ) can be seen gazing at a full-length portrait of Evangeline much like the full-length oil portrait of Hurd Hatfield in the famed Oscar Wilde movie The Picture of Dorian Gray (1945) in which Hatfield and Lansbury both starred together.
A take on the life and death of Marilyn Monroe, with the character Evangeline being in place of Monroe.
When Jessica is in her hotel room talking to Dr. Dunn, the boom mic can be seen in the mirror behind Dr. Dunn.
Once, when Jessica approaches the hotel desk, she asks for Room 812. Another time, she identifies her room as 810.
Angela Lansbury as Jessica Fletcher
Jerry Orbach as Detective Harry McGraw
Karen Black as Dr. Sylvia Dunn
Ray Girardin as Lt. Nathanial Casey
Nancy Grahn as Sheila Saxon
Robert Gray as Albert "Bert" Cromwell / Al
Hurd Hatfield as William Radford
Edward Mulhare as Richard Bennett
Cotter Smith as Robert Rhine
Vic Tayback as Sal Domino