It’s 1981 in Richmond, south-west London. Detective Inspector Henry Hobbes is called out to a rundown house where the octogenarian Leonard Graves has killed himself. There’s vodka, pills, a cut on his arm and a note in his pocket to a woman called Adeline. But who is she? Searching the house, Hobbes and his sergeant, Meg Latimer, discover dozens of identical dresses, each one cut open at the stomach, the gash lined with blood.