Spoiled heiress (Hawn) falls off her yacht and is rescued by her handyman (real life love Russell). When she suffers amnesia, Kurt gets back at her tyrannical ways by claiming that he's her husband and forces her to do menial labor for the first time in her life. Very nice supporting performances from Herrmann (as her real husband) and Roddy McDowall as her long-suffering butler. Director Garry Marshall (Pretty Woman) also does a quick cameo as a drummer.
Here he is