★★★
John Foss, a young man in a state of distraction, gets his foot caught while leaving the train at the country station of Flensham. Badly injured, he providentially finds himself sharing a platform with the beautiful Mrs Leveridge, who is on her way to a house party at the nearby Bragley Court. She takes John along with her, so that he can receive the attention of a doctor and rest in comfort, correctly judging that their host Lord Aveling won’t mind stretching his hospitality to another guest. But, as John is warmly greeted and installed on a couch, he realises that his presence means there will be thirteen guests at this weekend’s party. And, as the other guests trickle in, John finds himself watching to see who will be the thirteenth to pass through the doorway. He swiftly sees that all is not well at Bragley. Secrets and dislike ripple beneath the polite surface and there are strange alliances and tensions between unexpected groups of guests. And he is right to be uneasy, for by the end of the weekend three people will be dead…