Margot has come back to England from America to show solidarity with her extended family in the midst of a scandalous murder trial. Cousin Chloe stands accused of stabbing her identical twin sister, Claudia, and Margot’s well-to-do relatives are, understandably, a mess—that is to say, even more dysfunctional than usual. One is eating compulsively to cope with the stress; Claudia’s teenage daughter is hiding out in her bedroom; the paparazzi are hounding everyone; and all the while Chloe won’t speak a word to the police, lawyers, or doctors. No wonder the household’s pet Abyssinian, Tikki, has gone to stay with the neighbors.