"You are not the only ones playing this game." Do clues discovered in a new room herald nothing more than a new despair? Soon the brutal sentencing of the third Judgment is visited upon the participants. Who here is the victim, and who the perpetrator? Until all is revealed, time is on no one's side...

Envy, lust, sloth, wrath, gluttony, pride, greed. A group of sinners who bear the guilt of the seven deadly sins has been gathered in an old courthouse to face judgment. To leave this place alive, they must offer up a sacrifice: one of their number. As the trial begins, who will the gavel fall on first?

The mobile phone game Rabbit Doubt has taken Japan by storm. In it, players are rabbits who must uncover the wolf in rabbit's clothing before falling prey to its mistrust-sowing wiles--as well as its teeth. When a group of players decides to meet offline for fun, the last thing they expect is to lose consciousness and wake up trapped in an abandoned building, with mysterious bar codes tattooed on their bodies and a corpse strung up in front of them....

Within an abandoned old building, the popular mobile-phone game Rabbit Doubt--in which players must try to discover the wolf in rabbit's clothing or pay the bloody price--has become a grotesque reality for a group of online friends. As the bones pile up, the survivors begin to question one another, and the seeds of suspicion take root. Who to trust? Who to doubt? With the wolf on the prowl, culling the herd, will any of the unfortunate souls caught...