His newest obsession involves investigating the circumstances surrounding his grandfather's death forty years earlier, when he allegedly committed suicide by wandering into the ocean at a Miami beach.
Serge's grandfather, who passed on many of his habits and interests (as well as his mental instability) to his grandson, may have been involved with a lucrative jewel theft shortly before his disappearance, however, so his friends are understandably reluctant to talk.
To finance his quest, Serge and Lenny start up a unique tour service highlighting the "lesser known" side of Florida's tourism industry.
During one of his tours, a group of drunken convention attendees accidentally kidnap and kill a mob boss.
The mobster in question just happens to be one that Serge personally insulted a few days earlier, incurring the wrath of both the mob and the FBI.