Husband and wife PI team Helen Hawthorne and Phil Sagemont each have their hands full, but only Helen has to carry drink trays—as part of her latest undercover assignment....

To catch a jewel smuggler on a luxury yacht, Helen is posing as the ship's new stewardess. But between serving drinks and scrubbing floors, she's starting to miss dry land almost as much as she misses Phil.

Meanwhile, Phil is trying to catch a sexy gold digger who may have killed her elderly husband. Good thing Phil is a master of disguise, playing it cool as everything from an air-conditioning repairman to a Rastafarian. Helen and Phil help each other out whenever possible, but when Helen's on her own on the high seas, she needs to watch her step—or she may wind up going from undercover to overboard....