In an interview posted on her website, the novelist Cathi Unsworth sits in a cloud of cigarette smoke, earnestly leaning forward, unsmiling, answering a question directly, with detail and passion. She looks like Gloria Grahame in Fritz Lang’s 1953 The Big Heat: the picture where Lee Marvin throws boiling coffee in her face. On camera, Unsworth is almost flinching against herself, as if the trials she inflicts on her characters are swirling around her, along with her own smoke.