Gaudy Night

Synopsis:

Having been acquitted of murder, Harriet Vane attends a reunion at her (fictional) Oxford alma mater, Shrewsbury College. Here she encounters a tangle of poison pen[?] notes, obscene graffiti, and dangerous pranks that Lord Peter Wimsey helps her solve. As the case develops, she begins to realize that she loves Wimsey, who has been proposing to her ever since he met her in prison, and facing the gallows as a suspect in the murder of her former lover, in Strong Poison, and she finally accepts his proposal of marriage. Their marriage is depicted (along with a murder mystery) in Busman's Honeymoon.

The plot of Gaudy Night was adapted to become the two-part Out of the Past episode (#155 & #156, first aired on 11 May 2000, with John Schneider[?] as the villain) of the American television mystery series Diagnosis Murder[?] starring Dick Van Dyke[?] as Dr. Mark Sloan.