He Ping dies, Luo Yicheng and sticks to their promise. Door Fish, later renamed Fighting Fish, is a movie co-directed by Ke Han-chen and Hu Yuanning, starring Wang Jie, Lin Bo-iei, Wu Yue-kei, Hong-xi, Lin Hui-chen, Qiu Yu-chen, and so on.At the end of the film, He Ping was martyred in the line of duty, and his superiors did not agree to report the martyrdom, and Luo Yicheng ran up and down the line in vain, so he resolved to take care of the old He's widow's life of the mother and son and held fast to the promise of the two of them. The film was released on August 17, 2018 in Taiwan, China.