Arnaldur, a 16-year-old boy living a normal teenager's life in Reykjavik. One day, coming home from school, he finds his brother in the bathtub, dead. Despite clear signs of a suicide, Arnaldur is convinced that his brother's teacher is somehow responsible so he decides to take matters into his own hands and avenge his brother.
Styr Júlíusson
as Arnaldur
Davíð Guðbrandsson
as Arnaldur's father
Hilmir Snær Guðnason
as Drunk man
Damon Younger
as Magga's father
Þorsteinn Bachmann
as Police Sergeant
Ísak Hinriksson
as Júlli
Hjalti Rúnar Jónsson
as Gulli
Arndís Hrönn Egilsdóttir
as Júlli's mother
Kristján Hafþórsson
as Höddi
Alexía Björg Jóhannesdóttir
as Arnaldur's mother
Thor Tulinius
as Police officer #1
Aron Brink Sigurjónsson
as Bjössi Tango