影片灵感来源于真实故事，讲述两个男孩在夏天发现了成年人的暴力行为，但也发现了友谊的力量。

有两位父亲的十几岁少年制作了一部有关双亲的纪录片，却不料离奇的情节开始在他的家中真实上演。

威尼斯电影节威尼斯日单元展映。
As a child, Jack believed the tender lie his parents told him, that Gio was a special being with superpowers, as in a comic book. Now that he is about to go to high school, however, Jack no longer believes that his brother is a superhero, in fact, he is almost ashamed of him, especially since he met Arianna, the first love of his life. Jack cannot allow himself to make any gaffes of bad impressions with the girl of his dreams and looking after his little brother and his unpredictable behaviour soon becomes a burden, to the point that Jack pretends not to have any brother and hides the existence of Gio from the eyes of his new classmates and, above all, of Arianna. But you cannot be loved by someone as you are, if you cannot love someone despite his faults and this is a life-lesson that Jack will have to learn: it will be his brother Gio to teach him that, with his straight ways, his unique point of view and his simple but surprisingly wise words.

In the past few days Rome has been the scene of a singular event: when it rains, the manholes exhale a dense steam whose origin and composition is unknown. No one can imagine that whoever breathes in the mysterious substance will have to deal with what he/she represses, their darkest instincts, their anger. Not even the Morel family.