14-year old Em likes to hang around in her old play house. One day a boy, Jakob, sets fire to it, and Em catches a brief glimpse of him before he disappears. They meet again a few days later. For the first time in her life, Em falls in love.

Hanna, Brian and Jesper have been friends ever since they can remember and are just about to move together. That summer they go to the Hultsfred Festival along with Brian's new girlfriend Karola. Hanna falls asleep early one night and when she wakes up everything is different between the four of them. Hanna still doesn't know what happened that night when she and Jesper return to their home in Stockholm. But one thing is for sure, the events that took place led to many lies, and some truths.

While her parents are absent, Isabell has invited a few of her closest, best-behaving friends to celebrate New Year's Eve in her house. However, the good spirit turns sour when some older guys crash the party. The alcohol they bring put the teens in a frenzied state where friends become enemies, couples cheat on each other and medical student Peter is almost killed in a party they won't easily forget.

Theo, Siri and Wilma form a detective club in a suburban cellar. Robert, whose father owns the place , joins the three in trying to solve a series of mysterious events in the neighborhood.