Schoolgirl Inga goes to visit her sister in Stockholm and is shocked to find her living with her boyfriend, Casten.

Office executive Knut Levin decides to arrange a party at work. Things don't go exactly according to plan with hilarious results.

A group of young people gathered on the countryside to celebrate midsummer dancing, drinking and romancing. And some fighting too. Followed by more violence, jealousy and guilt. On the journey home one of the cars the travel in collides with a bus.