Ever since the mid-20th century, novels, movies and TV series have explored our fascination with the secretly troubled lives of people living in the suburbs — perhaps because the majority of Americans live in suburbs.In narratives from the “dark suburbia” genre, the characters want to enjoy the American dream of finally owning a nice house with a big yard in a safe, pleasant town. But they are deeply unhappy. In classics of the genre, the husbands go off to their soul-crushing corporate jobs, while their wives are stuck at home, despairing over wasted college educations and the mundane tasks of…