When the legendary French diva Corinne Coreille begins to receive death threats, she decides to take refuge at Chalfont Park, the country house and estate of her godmother Lady Grylls. The other houseguests include Antonia Darcy and her husband Major Payne, Corinne's dominating agent, Maitre Maginot, a private detective called Jonson and Lady Grylls's nephew, Peverel de Broke. The eccentric millionairess socialite Eleanor Merchant is travelling from the US with the sole intention of coming face to face with Corinne. Worryingly, she is convinced Corinne's haunting voice lured her son to suicide . . .