Just about everyone knows a family like the Radleys. Many of us grew up next door to one. They are a modern family, averagely content, averagely dysfunctional, living in a staid and quiet suburban English town. Peter is an overworked doctor whose wife, Helen, has become increasingly remote and uncommunicative. Rowan, their teenage son, is being bullied at school, and their anemic daughter, Clara, has recently become a vegan. They are typical, that...