Gotland has been invaded by partying youngsters from Stockholm when the police are notified that a young woman has been found dead in the water at an after party.
After Charlotte Nordenstam is found dead, Maria Wern is forced to map all the young people who were at the party where she was murdered.
Dr Stefan Helmersson is found poisoned by a roadside, connected to a drip that barely keeps him alive. Should he be kept sedated or woken up to move forward with the investigation?
The beloved doctor reveals hidden enemies. His affair's disappearance points to a former patient, unraveling a mysterious trail.
An elderly bookseller is found dead in his car on the ferry to Faro. As his death is investigated, a mysterious cafe is discovered in the basement of his bookstore.
Maria battles personal chaos while the investigation takes an unexpected turn, unearthing a cascade of secrets.