About six people who find themselves trapped in a maze-like cube and have to figure a way out, while evading fatal traps. Six people are locked in a mysterious cube shaped room. These 6 people are: 29-year-old engineer Yuichi Goto, 37-year-old association employee Asako Kai, 31-year-old Freeter Shinji Ochi, 13-year-old middle school student Chiharu Uno, 39-year-old mechanic Hiroshi Ide and 61-year-old company executive Kazumasa Ando. These 6 people are complete strangers to each other. They don't know why they are locked in the room, but they try to escape out of the mysterious cube. If they can't decipher the code, they won't get out of the cube.