Midsummer Weekend in Sandhamn. Young people are partying, the music is pounding and the alcohol is flowing. A young girl, Felicia, comes stumbling along, seriously intoxicated. She is looking for her friend. She collapses and is taken under the care of the police. Sandhamn has a painful awakening from the night's celebrations, when a summer guest who is swimming the next morning finds a teenager, Victor, dead on a cliff. Everything points to murder.