Sir Harry Oakes, a wealthy British aristocrat is murdered by his son-in-law, revealing international intrigue and deception in the Bahamas before World War II.
Lors d'une plongée, un élève de la monitrice Anne Kimbrough meurt, dévoré par un piranha. Quelques heures plus tard, une femme de service est tuée par un piranha volant sortant du ventre du cadavre. Anne décide alors de mener l'enquête.
When a senator's new wife is murdered, the prime suspect is his ex-wife, Laurel. Laurel's brother-in-law, lawyer Paul Madriani, still reeling from the death of his wife, takes on the case.