
Self-made millionaire Jonathan and freelance writer Jennifer are the Harts - a globetrotting married couple with a talent for finding mysteries wherever they go. And even when they're uncovering thefts, espionage and assorted skullduggery, they still find time for romance.

An eccentric art collector (John Dehner) wants to add Jennifer to treasures by eliminating Jonathan.

Jennifer faces danger after she is lent a flashy outfit with "rhinestones" that are really diamonds.

A stranger contaminates the Harts' pool, blinding Jonathan, then attacks him in the hospital.

The Harts find murder and intrigue at the track as they prepare for their Thoroughbred's debut.