He was a handsome millionaire. She was a well-know journalist. Their hobby was murder. What a beginning! The Harts were, of course, Robert Wagner and Stefanie Powers. And the show was an update of "Thin Man" movies. But thanks God, plots were better in the show. Behind all that was creator (and best-seller novelist) Sidney Sheldon who also wrote some scripts in the show. The show was excellent, specially for a very good acting and good scripts. And no forget that wonderful sense of humour! Lionel Stander was the housekeeper Max and Freeway (that was also kidnapped in one episode) was Hart's dog. This is one of my favourite 70's crime and mistery show. Better than Charlie's angels, Kojack, Columbo, etc. It had the same kind of magic I found years later with "Remington Steele".