故事設置的環境很特別，家長們都不在家，六個有錢人家的表堂兄妹，住在一個大門有保安嚴格把關的社區內，不受外界的干擾，這群孩子由最大的孩子瑪麗負責，在女傭埃薩的照顧下，經歷了一周沒有家長控制的生活。 完全沒有家長的控制，少年們從開始的好奇心，對打破規矩的試探心理，慢慢意識到被孤立之後無助感，同時他們在冒險心境的促使下，不斷私入鄰居內宅，最後失控到在他人房宅內大肆毀壞財物。伴隨著細膩的心理表現與人物關係互動，使得整個人物刻畫層次分明，有條不紊。每一個孩子，從大到小，他們各自的心理和個性，都揭示得清晰明了。

Maria is a girl in her early teens whose family lives in an upscale gated suburb. Maria's parents are going out of town for a week, and rather than leave her with relatives or hire a babysitter, Maria is put in charge of looking after her little sister Sofia, with housekeeper Esther serving as a nominal adult authority figure, though for the most part she lets Maria and the others do what they please. With only their parents bedroom off-limits, Maria and Sofia have the run of the house, and soon they and their friends Facundo, Quique, Rodrigo and Timmy are spending their days exploring the place. As the kids begin creating their own rules to run counter to the ones their absent parents set down, Esther brings a young relative, Fernando, to play with them, and the privileged kids begin to get a notion of the ways of the outside world.

La crónica de los sucesos que ocurren cuando un grupo de niños cuya edad oscila entre los 7 y 14 años quedan solos durante una semana en una casa dentro de un country. La película retrata esos días, entre la cotidianeidad inocente propia de la infancia y la ferocidad incipiente que surge del encierro.