Frank Guidry knows too much about the crime of the century: the assassination of President John F. Kennedy. Within hours of JFK's murder, everyone with ties to New Orleans' mob boss Carlos Marcello is turning up dead. Guidry was in Dallas on an errand for the boss less than two weeks before the president was shot. He hits the road to Las Vegas, to see an old associate who might help him vanish. Guidry stops to help a housewife on the side of the road...