Season 3, Episode 14 (Episode 63)
Directed by: Seymour Robbie
Also Starring: Mike Connors, Joseph Campanella, Gail Fisher
Terry's Character: Marcus Fair (Peggy's husband)
Genre: Action / Drama
Plot Summary: Mannix tries to clear the name of Peggy's late husband Marcus Fair, when his name appears on a list of policemen who were being paid off by a burglary ring. Stumped by the seemingly impenetrable code in Marcus' police diary, Mannix seeks the help of a pianist friend with a flair for cryptology.