An offbeat, darkly clever debut novel about a night cleaner who discovers a toxic secret about her company's CEO--and decides to take matters into her own handsEvery night, she cleans. On the fourth floor of an unnamed office in an unnamed city, the night cleaner comes and does what she does best--sorts out the messes of the daytime employees. None of them know her, but she knows everything about them: Sad Intern's dreams to get promoted, R sum...