Lionel Twain invites the world's five greatest detectives to a 'dinner and murder'. Included are a blind butler, a deaf-mute maid, screams, spinning rooms, secret passages, false identities and more plot turns and twists than are decently allowed.

A spoiled teenager spends the summer at the French Riviera with her rich, widower, playboy father, but when his old flame resurfaces, she resolves to keep her frivolous lifestyle at all costs.