Returning home is full of conflict and brings up old memories and secrets for the siblings. They don't know that their mother, Anna-Lisa, has a hidden agenda that will change their lives.

Anna-Lisa's sudden death comes as a shock, all the more so as her will contains a requirement that forces them to stay on the island. Events in Stockholm tighten the noose around Lasse's neck.

Jonna disappears, which threatens the terms of the will. Lasse wants to fix the pool, but Oskar forbids it because underneath is a secret he wants to keep buried.

Lasse's hopes for insurance money are dashed. Oskar notices Liv's interest in Lasse but must support his brother in order to ease his conscience. Jonna finds refuge and friendship with someone unexpected.

The boarding house is getting ready for a wedding, which creates problems for Oskar, who wants to impress Liv. Jonna receives an unexpected visit that has unforeseen consequences. Lasse and Liv take things too far.

Oskar becomes paranoid about Lasse and Liv, ensuring they all continue to run the lodging house together. In the sea, divers looking for a wreck find something else.