Marc Bienstock

A man and woman detective team investigate the murder of a corporate president, but because the deceased was a friend of the male detective, he is reluctant to believe the signs that point to the widow as the killer. Still, the team take turns watching her movements, but during the male detective's turn, his past friendship with the deceased gradually allows him access to the suspected widow, and it isn't long before they're in bed together. (imdb)

A multi-millionaire client of a detective agency hires an investigator to get dirt on his wife, so he can divorce her. What the investigator finds instead is that the wife takes care of her elderly mother, likes to drink a little too much, and skinny dips in the ocean. (imdb)