Showing The Shape of Dread by Marcia Muller

Bobby Foster, car-hop at the chic Cafe Comedie, is going to the gas chamber. He's already confessed to the murder of Tracy Kostakos, the club's rising star. But two years after the crime, Tracy's body is still missing and Bobby's confession is full of holes. All Souls Legal Cooperative's final appeal sends San Francisco's #1 P.I. Sharon McCone behind the footlights into the super-charged arena of anxious club owners and aspiring young hopefuls...into the fractured world of Tracy's privileged family and the mind of a young comedienne who was not the good little girl they thought they knew...into a labyrinth of death and deception where someone will kill to laugh last and get away with murder.