Jock was supposed to have died in the Paddington train crash. Minty had received a letter from the railway company. But, curiously, the police hadn't been in touch. And Jock had gone off with all her savings.
Then Jock's ghost starts reappearing to Minty: at home, at work, even in the cinema. He even touches her. Minty started to carry a knife. If he wasn't made of shadows, would he bleed?