"There are three murderers hiding in your midst."

These ominous words given to the six survivors of a tragic bus accident are followed by an ultimatum: The murderers must anguish over their crimes and find a way to answer for them within one week, or the evidence of their sins will be given to the police. But when every person has a secret, who can you trust...? The thrilling psychological horror manga returns in an all-new deluxe omnibus!