The Killing Silence traces the story of a couple (Luisa & Samir) that live in Europe and are forced to go back to Morocco to be near Luisa's dying mother. Luisa's mother in her last moments reveals that she is not her biological mother. She gives Luisa a key and an address of a house in a village where Luisa will experience some strange occurrences, where she will discover hidden secrets about her family's and her own past.