Off and Running (1991)

Cyd Morse is an actress, but her biggest role so far is as a recurrent guest on '"Miami Vice"'. She earns her living with underwater dancing at the bar of the Eden Rock Hotel in Miami Beach. There she's approached by ex-jockey Woody; they start dating and kind-of fall in love. However it's a short luck: one evening he's brutally beaten to death in his hotel room. Cyd's a witness and gets hold of a key Woody had around his neck. She's got to flee from the murderer. Due to an accident she meets golfer Jack Connett. He can't resist her charme and helps her on the search for the lock to the key and the flight from the murderer.