Anna-Lisa Waldemar runs a popular family pension on the beautiful island of Sunnanö in the Swedish archipelago with her son Oskar. Unbeknownst to her, she invites his brother Lasse and sister Jonna to the season opening. Oskar is barely recovered from this shock when his world collapses: Anna-Lisa is found dead and her will contains strict provisions for the three children. During the whole season they have to run the guest house together, otherwise they will inherit nothing at all. It is her last attempt to reunite her children.