Gary Nelson, a commuter with a monotonous routine, notices a woman on his train applying her makeup daily. One evening, she invites him to sit beside her and reveals the words "HELP ME" on her mirror. This encounter propels Gary into a perilous situation, entangling him with the Russian mafia, the FSB, and the Metropolitan Police. As he delves deeper, he uncovers more about the mysterious woman and the dangerous secrets she harbors.