Taehwa receives a lung transplant from his father, who had committed a hit-and-run the night before the surgery. Riddled with guilt, Taehwa sets out to find the victim’s daughter Miji.
Tim, an amateur filmmaker, returns home to film his brother Sean's funeral after his apparent suicide. But in the days that follow, Tim discovers Sean's obsession with an Internet urban legend that does not exist about a secret government mind control experiment gone horrifically wrong, Project MKHEXE.