The pilot film for an atmospheric whodunit set in the 1940s that involves an author-criminologist in one of the cases stumping his New York City police inspector father -- the murder of a famed fashion designer. Hutton and Wayne continued their roles in the subsequent series (1975-76) that also had John Hillerman in a recurring role of pompous radio detective Simon Brimmer (a character not in the Ellery Queen mysteries).
Harry Von Zell
Aired in United States March 23, 1975
Subsequently retitled "Too Many Suspects."