Doubt (TONOGAI Yoshiki)

From Yen Press:

A Japanese cell phone game called Rabbit Doubt has gone viral in Tokyo. In it, players are rabbits who must do everything in their power to uncover the wolf in rabbit’s clothing before it kills them off. The wolf, a randomly selected player, must use his wiles to create mistrust among the rabbits and knock his adversaries off one by one. When five fans of this game decide to meet offline for fun, the last thing they expect is to lose consciousness and wake up trapped in an abandoned building with a corpse strung up in front of them, a mysterious barcode tattooed on each of their bodies. Will the virtual friends be able to pull it together in the real world and figure out what’s going on in time to avoid ending up the wolf’s dinner?