Five years after meeting her three fathers, Sophie Sheridan prepares to open her mother’s hotel. In 1979, young Donna Sheridan meets the men who each could be Sophie’s biological father.
The landlubber Stig-Helmer and his Norwegian friend Ole get on a barge by mistake. They arrive at an archipelago and have to spend Midsummer among the fancy rich boat people, their yachts and summer houses.
After a woman buys a Japanese shunga painting from an auction and later is found murdered in a hotel in Stockholm, the police gets dragged into a murder investigation where they meet the dark side of the art world.
