Per is living in a small town and dreams of becoming a jazz musician in New York. As a first step he applies to a music high school in Stockholm and is - much to his surprise - accepted. Then a new chapter in his life begins when he falls in love with one of his fellow students, Kim.

It is the first day of the summer vacation. Jojje, Jerker and Fabian wants to borrow a sailing boat to take a boat trip so they steal it. They plan to examine all of Lake Maelaren, but a storm breaks out and the boat sinks. They go ashore, steal food and a new boat. While everybody else believes them to be dead, they have a wonderful time. They meet a crazy Count and find a dead body.