The film is based on the best-selling suspense novel "The Long Corridor" by Keigo Higashino. There are countless secrets hidden in the cloister pavilion mansion. After the rich merchant died of illness, a fire murder case that occurred a year ago was revealed, involving the first heir of the estate, that is, the illegitimate son of the deceased, making the distribution of the estate complicated.

Set in the period before and after the founding of PRC, it is a story that follows the first generation of People's Public Security. CCP undercover agent, Zheng Chao Yang, engages in a battle of wits and will against KMT operatives. Before the battle of Liaoshen, Communist operative CCP undercover agent, Zheng Chao Yang (Zhang Yi), infiltrates and lurks in the Peiping police station. Zheng Chao Yang's identity is discovered by a traitor, forcing him to evacuate the police station immediately. In his escape, he is able to take with him a secret list of KMT spies that can deal a detrimental blow to the KMT. After the liberation of Peiping, Zheng Chao Yang returns to the city. However, waiting for him is a new battlefield. The KMT has dispatched a team of elite spies operating under the codename "Tao Yuan". Tao Yuan is led by the elite spy codenamed "Phoenix" and who is actually Chao Yang's older brother, Zheng Chao Shan (Huang Zhizhong), who is a famous doctor.

Backed into a corner by mounting debts, a youth agrees to submit himself to a high stakes game of chance in international waters aboard a disused warship.

A man becomes involved in a memory manipulation operation to try and regain lost memories. He thinks the exercise may help repair his failed marriage, but accidentally ends up with the mind of a serial killer.

A man is looking for his missing girlfriend in Tibet.