Part of the British mystery series based on the books by Agatha Christie, Miss Marple: They Do It With Mirrors was first aired in 1991. Miss Jane Marple (Joan Hickson) visits her friend Carrie-Louise Serrocold (Jean Simmons) at her country estate known as Stonygates. When Carrie-Louises husband, Lewis (Joss Ackland), is threatened by a local reform school student with a gun, Miss Marple starts an investigation -- especially when Stonygates visitor Christian Gulbranden (John Bott) turns up dead from a gunshot wound. ~ Andrea LeVasseur, All Movie Guide