A soldier introduces himself to the Peterson family, claiming to be a friend of their son who died in action. After the young man is welcomed into their home, a series of accidental deaths seem to be connected to his presence.
Still struggling over the loss of their oldest son, Caleb, to the war in Afghanistan, the Peterson family Mr. and Mrs. Peterson and their children Luke and Anna are unexpectedly visited by David Collins, a former soldier who claims to have been a friend of Caleb's, and is there to fulfill his promise to Caleb to help take care of the family. David is polite, warm and friendly toward the family, and Mrs. Peterson offers to let him stay as long as he needs to....