Jeong Byeong-gil co-writes and directs this Korean action thriller starring Kim Ok-bin as ruthless female assassin Sook-hee. Trained to kill from a young age, Sook-hee is given the chance to start a new life in South Korea following the death of her mentor. Taking up a job as a government agent, she is promised her freedom after ten years of service. However, things soon become complicated when two mysterious men appear, forcing Sook-hee to confront a number of dark secrets from her past. The cast also includes Shin Ha-kyun, Sung Joon and Kim Seo-hyung.