Christine's 8-year-old son, Ritchie has been accepted into a posh private school where Christine encounters two snooty class moms, Marly and Lindsay, who can't seem to grasp the concept that Christine actually works. Her 20-something slacker brother, Matthew, lives with her, but in a pinch, also serves as Ritchie's babysitter.

On the first day at Ritchie's new school, Christine is mortified to discover that her ex-husband, Richard, with whom she gets along even better than when they were married, is dating a young, nice, impossible-to-hate woman also named Christine… the "new" Christine.

8-летний сын Кристины, Ричи, был принят в шикарную частную школу, где Кристина встречает двух высокомерных мамочек, Марли и Линдси, которые, похоже, не могут понять, что Кристина действительно работает. Ее брат-бездельник Мэтью, которому около 20 лет, живет с ней, но в крайнем случае он также работает няней Ричи.