Nala, a 13-year-old girl from the city, travels with her family to her grandmother's home in the countryside, to try to find a cure for her little sister's mysterious illness - But she'll soon find her granny is not exactly what she seems.。一个大学女生参加姐妹会竞选,而她养了一只可爱的树懒,意识到可以让这只小动物担任姐妹会的吉祥物,对自己拉票也有利。但此后,姐妹会里发生了一系列死亡事件,树懒竟成为了第一嫌疑犯……该片变成了一个姐妹们与树懒斗争的逃生故事,但是,当然,树懒们跑得可不快。。