Jake and the Fatman - Season 3 - Eps 12: In the Still of the Night
Derek gets Jake to look into things, when the sister of a good friend is arrested for possession of drugs. She says they were planted by her mother-in-law, who is angry with her son for trying to take control of the family company, and at her for marrying him.
About Jake and the Fatman

Title: Jake and the Fatman
First Air Date: 1987-09-26
Last Air Date: 1992-05-06
Status: Ended
Rating: 6.041/10 (from 49 votes)
Language: EN
Seasons: 5
Total Episodes: 106
Network: CBS
Genres: Drama, Crime, Action & Adventure
Production Companies: Viacom Productions, Dean Hargrove Productions, Fred Silverman Company, Strathmore Productions
Synopsis
Jake and the Fatman is a television crime drama starring William Conrad as prosecutor J. L. "Fatman" McCabe and Joe Penny as investigator Jake Styles. The series ran on CBS for five seasons from 1987 to 1992. Diagnosis: Murder was a spin-off of this series.
Cast

William Conrad
Jason McCabe

Joe Penny
Jake Styles

Alan Campbell
Derek Mitchell