AllMovie

A young boy's yearly routine of traveling to a Western Sweden island to spend the summer with his grandparents is suddenly shaken up when his schoolyard "blood brother" mistakes a casual comment about the trip as an open invitation to tag along in director Anders Gustafsson's playful tale of peer resentment and familial relations. Ulf looks forward to his yearly trip with the family, but this year is different. After misinterpreting a conversation about the trip with Ulf as an invitation, school chum Percy sets out with the family on their annual holiday unaware that he was never truly wanted there. Though Ulf's parents view Percy as an unsuitable friend for their son, everyone else on the island - including Ulf's curmudgeonly grandfather - seems enchanted by the amiable young charmer. When Ulf's summertime crush Pia also begins to show signs of affection for Percy, the stinging pain of childhood jealousy suddenly threatens to drive a wedge between the two young friends.