Simon is nine years old and lives a harmonious life with his mother Karin. In school, on the other hand, he is constantly bullied by the two-year-older Alex. Karin starts to date Björn, a man that Simon really like. It turns out that Björn is Alex father, but the boys' parents do not know anything about the problems. When they all move in together, Simon's situation becomes unbearable. Alex takes the harassment to far and destroys a necklace that was given to Simon from Björn. But enough is enough and for the first time Simon revenge.