Diagnosis: Murder (1993)

Season 6: Episode 11

Jesse's car breaks down while he and Susan are on their way to a fun-filled vacation in Carmel. The two are stranded in a small town where Susan spies a supposedly long dead beau, Greg. They eventually discover that he faked his death in order to plunder a shipwrecked vessel undetected. The townsfolk, all in on the scheme, murder Greg and pin the blame on Jesse and Susan.