Tetris is a paranormal story about a computer illiterate woman, Anna Webster, who is trust into the world of industrial espionage when she receives a copy of a game disk, Tetris and accidentally pulls up a spreadsheet tied to the game. Anna is troubled when one of her co-workers is killed and her roommate beaten to near death. This forces Anna to seek shelter at a cottage owned by her employer, Edward Armbruster. It isn't until the next generation computer she has access to at the cottage she is renting, helps her uncover the spreadsheets hidden in the Tetris directories on the disk. Anna along with the computer, uncovers the lengths someone has taken to siphon the company profits and bring it to near total collapse. While communicating with this next generation computer Anna finds herself strangely attracted to the artificial intelligence that seems to have a mind of its own.