Siblings Lasse, Jonna and Oskar Waldemar are reunited after many years at the family guesthouse on the Åland archipelago. The reunion is filled with conflict and brings up old memories and secrets. Meanwhile, their mother Anna-Lisa has a hidden agenda that will change the siblings’ lives forever.

Anna-Lisa’s sudden death is a shock to the siblings and her will contains unexpected demands, forcing Lasse, Oskar and Jonna to remain and work at the guesthouse against their will. At the same time something in Stockholm is pulling the noose tighter around Lasse’s neck. Suddenly the siblings face their longest summer ever.

Jonna is gone and feels threatened if she does not return to the guest house. Lasse wants to complete the pool while he is there, but Oskar prohibits it. Under the pool a dark secret is buried.

Lasse will not get any insurance money after the restaurant fire and creditors come to the guest house. Oskar becomes jealous when Liv defends Lasse, but is forced to still help him. Jonna finds sanctuary in amateur theatre and new boyfriend Mikael Rosen. Kim becomes aware of a family feud.

It’s midsummer and the guest house is preparing for the wedding, which creates unexpected difficulties for Oskar. Jonna gets a surprise visit that complicates things further. Lasse and Liv have a conflict related to the past, but when the truth comes out, everything changes and they cross a line.