"Two people meet on a train: the young man is imagining a novel, and imagining the life of the young woman. A waiter rushes out to find a girl he fancied who hasn't paid her bill, only to find a diary in which their fictitious flirtation is anatomised. But the story actually begins with a man taking a leak after making love to his wife. He has the inklings of a novel, but thoughts will keep intruding, with all their seductive possibilities. The man...