Brilliant computer hacker Sam Collins is on probation and barred from the internet; his parole officer is Harry. He steals from mailboxes and works at a local dessert shop with hacking cohort Stanley, now going by David. When Sam steals a letter written by Josie to her dead Marine husband, he begins stalking her, stealing her letters, and finding the courage to introduce himself. FBI agent Ames accuses Sam of stealing Bitcoins, which were actually stolen by David, and are now lost.