The center of the criminal events is occupied by accountant Jack Bins, who is a participant in the witness protection program. He gets into trouble and faces betrayal from his former employers, members of the criminal group "Pinaphor". Three years later, Jack believes that the danger has passed and decides to return to his former life. He doesn't yet know that ahead of him lies a life filled with numerous murders and chaos. And throughout Jack's journey, he is accompanied by mathematics.