Sherlock helps a math genius from his network of 'Irregulars' experts after he stumbles upon a body while participating in a math puzzle competition. Joan attempts to extend an olive branch after she learns about Kitty’s past.
Released: Jan 01, 1970
Runtime: 00:43:14 minutes
Genre: Drama, Mystery, Crime
Stars: Jonny Lee Miller, Lucy Liu, Jon Michael Hill, Aidan Quinn