Jock Lewis died in the Paddington train crash. Or did he? His fiancée Minty is coming to terms with both his loss and the loss of all her savings, which Jock vanished with. And there is Zilla, who had been married to a man called Jerry Leach. She also received a letter from the railway company telling her that her husband is dead. Other women, too, who do not know each other, have all had relationships with a dark-haired man who disappears from their lives. And when Jock's ghost reappears to Minty at her home and at her work, she begins to carry a knife... but if she stabs him, will he bleed?