The trouble at the Conlees' lakeside estate begins when vandals topple and destroy an expensive Italian fountain. Then they slash the tires and damage the paint job on a Jaguar. That's when Roy Ballard's client, the insurance company, asks him to catch the vandal in the act and prevent future claims. Surprisingly, the homeowner, Norman Conlee, opposes the idea. He intends to address the problem himself by fencing the property and keeping his revolver...