Charlie is a young woman who is thrilled that her favorite Uncle Charlie is coming home for good. But she soon discovers that her namesake, a "Wall Street financier," has a deep, dark secret. And knowledge of that secret by anyone can prove to be deadly.

Lt. Fergie Howard teams up with Lt. Beau Gilliam and Navy scientist Jason Eldridge to turn a supercomputer with missile-tracking capabilities into a tool to predict where a roulette ball will land. They dock in Venice, Italy, and begin making a killing at the casino, but their shore-to-ship signals get misinterpreted as signs of attack by Adm. Fitch, putting a serious crimp in the officers' get-rich-quick scheme.

Middle-class suburbanites Larry and Kitty grow bored with their lives and respective marriages. Although each always found the other's manner grating, they fall in love when thrown together--without their spouses--on vacation. On returning home they try to break things off, only to grow closer. A holiday together will finally settle whether they should end their marriages.