The film is based on a series of immensely popular Swedish children's books, about the boy Bert, who is just hitting puberty and having the usual problems with it. But that's where the usual ends abruptly.
Halim has seen through it all. He has seen through the Integration plan a secret conspiracy that tries to turn all immigrants into Swedes. Unfortunately he has also seen through his own father, who has fallen victim to the Integration plan. But Halim has his own plan; he is going to be Sweden’s mightiest revolution immigrant and take a stand to save his father from forgetting his Arabic roots.
A man with a mission climbs the stairs of a haunted apartment building.
