Computer scientist Hannon Fuller has uncovered something extremely important. He is about to tell his colleague Douglas Hall about this discovery, but, knowing that someone is after him, the old man leaves the letter in the computer parallel world his company has created (which looks like the 1930s with seemingly real people with real emotions). That same night, Fuller is murdered in our real world, and his colleague falls under suspicion. Douglas discovers a bloody shirt in his bathroom and can’t remember what he was doing the night Fuller was killed. He logs in to find the letter, but encounters the unexpected. The truth turns out to be harsher than he could have imagined…