The Snoop Sisters were Ernesta and Gwendolyn Snoop, mystery writers who ended up putting their imaginations to work solving mysteries of their own. They often were called in by their nephew, police lieutenant Steve Ostrowski, and made their way to the crime scenes with the aid of their chauffeur and ex-con Barney. After the initial pilot movie, the series was launched as part of the Wednesday Mystery Movie, NBC's attempt to create a second "wheel" night after the success of Columbo, McCloud, and McMillan and Wife on Sundays. Of the four Wednesday shows, Snoop Sisters wasn't the least popular, but it never caught on to the degree that even Banacek did. After four 90-minue episodes (and a move to Tuesday), the series was cancelled.