Daniel Andersson and his family are taken by a taxi driver to their country house. Arriving there, Daniel finds his best friend Anders waiting for him. They go into the boat and swims on the lake. Meanwhile, a rich boy named Jesper was observing the lake and watch them. At night, Daniel is bored and his parents argue. Daniel leaves the house and sees a blonde girl. Next morning, Daniel is swimming in the lake and encounters the blonde girl. He tries to talk to her, but finds out that she's deaf and that her name is Anna. Next day, Daniel spots Anna swims and Anders chase her with the boat. In despair, Anna gets hurt.

Daniel watches Anna doing makeup and apologizes. Daniel rents books about sign language and begins to learn about it. Daniel goes to Anna's house and communicates with her using sign language. Daniel continues to learn sign language and get closer to Anna, distancing himself from his best friend. Anders gets upset. Jesper was watching everything and takes advantage of the situation to befriend Anders.

Jesper arrives at Daniel's house on his moped with Anders. Jesper asks Daniel about the blonde girl and gets happy to know that he isn't her boyfriend. Jesper and Anders are preparing a party to celebrate Midsummer. Next day, Jesper invites Anna and Daniel too, at Anna's request. At night, Daniel and Anna run away from home and go to Jesper's party.

At Jesper's party, Daniel is humiliated by Anders and Jesper. Daniel goes to the bathroom and Jesper locks him up in order to spend more time with Anna. Hours later, Daniel is released when someone enters in the bathroom. Daniel fights with Jesper and Anna leaves the party. Daniel follows her and they swim in the lake. Back home, they're forbidden by Anna's mother to move on with their relationship because she thinks they swam naked. Later that day, Daniel gets bored and walks by the Anders' house, but sees Jesper there.

Anna goes shopping with her friend Maria, who is deaf too. Leaving the store, Anna meets Jesper and he offers a ride. Anna accepts. Jesper takes Anna to an abandoned place and tries to kiss her, but she refuses. Daniel is warned that his parents are getting divorced and that his mother will leave the country house soon.

Daniel is still tied to a tree. Jesper returns and releases Daniel, blaming Anders about it. Daniel's mother goes away. Jesper tries to apologize with Daniel, but he would only forgive Jesper if he borrowed his moped.