While adjusting to a new life in the suburban community of Aspen Ridge, a recently divorced mother of two receives mysterious letters instructing her and her teenage children to kill the people in their letters before they kill them. Paranoia and chaos ensues as the family attempts to rationally deal with an irrational situation.
The quiet family life of Nels Coxman, a snowplow driver, is upended after his son's murder. Nels begins a vengeful hunt for Viking, the drug lord he holds responsible for the killing, eliminating Viking's associates one by one. As Nels draws closer to Viking, his actions bring even more unexpected and violent consequences, as he proves that revenge is all in the execution.