A story of siblings building a tree house together over the course of a year. We experience the beauty and brutality of the seasons, as we follow them through their struggles and moments of joy.

In a remote Icelandic town, an off duty police chief begins to suspect a local man to have had an affair with his wife, who has recently died in a car accident. Gradually his obsession for finding out the truth accumulates and inevitably begins to endanger himself and his loved ones. A story of grief, revenge and unconditional love.