EVERYONE HAS SECRETS, AND SOMETIMES THOSE SECRETS KILL! Sophie Mathieson is trapped in a mediocre marriage and a mundane job that she hates. She counts the days of her life with numbers instead of calendar days; numbers that correspond to the length of her employment at Heller Corporation, or as Sophie refers to it, Hellco. On day 9,680 Sophie begins receiving threatening messages from a mysterious man. Terrified that her husband,...