The story tells about Ha Soo-young, a former police officer who was sent to a correctional facility for all the crimes, and then goes straight for her only goal after being released from prison. Jeon Do-yeon plays Ha Soo-young, a former police officer who lost everything. Ji Chang-wook plays Andy, who makes Ha Soo-young nervous during her journey to find the truth, and changes from his gentlemanly and gentle image. Lim Ji-yeon plays Jung Yoon-sun, who accompanies Soo-young for her own purpose, and creates a female romance with Jeon Do-yeon. Lee Jung-jae appears briefly, but will leave a strong impression.