This mesmerizing novel tells the story of a brutal murder in the staid Tokyo suburbs, as a young mother who works the night shift making boxed lunches strangles her abusive husband and then seeks the help of her coworkers to dispose of the body and cover up her crime. The coolly intelligent Masako emerges as the plot’s ringleader, but quickly discovers that this killing is merely the beginning, as it leads to a terrifying foray into the violent underbelly of Japanese society.