The film mainly tells that Lin Hongying, a trainee police officer, has finally joined the serious crime team of the Public Security Bureau after a rigorous test. The choice between love and hate is put in front of Lin Hongying.

• Sun Wei-Wei
• Liang Miao
• Wang Qian
• Chang Xiao Yang
• Wang Cong-Yi
• Liu Qiushi
• Wu Jian
• Wang Hang