Checkmate - Season 2 Episode 10 Nice Guys Finish Last
Police Lieutenant Dave Harker, a friend of Don's, is bitter after being denied a promotion to Captain, and decides to frame nightclub owner and high school rival Nick Culley, whom he blames for the pass over, for murder. Harker in turn is being blackmailed by a man who knows the truth. Devlin goes undercover as a rookie cop to keep an eye on Harker.
- Genre: Crime, Drama, Mystery
- Studio: CBS
- Keyword: san francisco, california, private investigator, detective agency
- Cast: Anthony George, Doug McClure, Sebastian Cabot
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