In a secluded manor near London, only their own gathered for Christmas: the ambassador of one eastern country with his wife, his son with his headstrong spouse, the daughter with her elegant, restrained husband, and also the diplomat’s friend—a millionaire with a beautiful wife. Night is approaching; outside, a blizzard rages—what could be a better setting for an ideal English murder? And it happens: someone poisons the ambassador’s drink. An hour later, the millionaire’s charming wife is shot dead. Who committed these murders? The answer must be found as quickly as possible, because the killer is among their own…