阿尔巴妈妈有两个儿子：乔治，年纪较大，在工作和与女性相处方面很专业，在罗马有一个妻子，在米兰至少有一个情人；莱昂纳迪诺，第二个儿子，敏感、抑郁，对一个女人来说甚至试图自杀。萨拉的到来彻底改变了莱昂纳多的生活，给他带来了意想不到的幸福，也给乔治带来了幸福，因为萨拉是他无耻地撒谎的女人之一，甚至假装有个儿子。

Babi is eighteen years old, she is an exemplary student, the perfect daughter and, most of all, she is a romantic girl waiting for her Prince Charming. Step is nineteen and he spends his time with a group of thugs. He left home because, from what people say, he is kind of violent. He often goes about with pirate car races and enjoys himself invading his richer friends houses, where he steal things and turns them upside down…
Babi and Step, living in so different worlds, meet accidentally: they fight, fall in love, all in one year time unforgettable not only for them but also for all the people that surround them...