Ethan Faulkner is a precocious child with a brilliant but troublesome sister, a war vet for a father, and a weary mother trying to manage their family. One night a young woman rings their doorbell, desperate to hide from two men who are pursuing her, when one of the two barges in after her. The struggle leaves Ethan's parents dead. Years later, Ethan hasn't quite followed through on his promise to his dying father - to take care of his sister. Susannah is not an easy person to keep tabs on, and Ethan wants her to suffer for preventing him from getting to his dad before he died all those years ago.