The beautiful bronzed body of Arlena Stuart lay face down on the beach. But strangely, there was no sun and Arlena was not sun-bathing... she had been strangled. Ever since Arlena's arrival the air had been thick with sexual tension. Each of the guests had a motive to kill her, including Arlena's new husband, but Hercule Poirot suspects that this apparent "crime of passion" conceals something much more evil.