Photographer Donghai

On the evening of June 23rd, 1976, Ding Juan made an appointment to see her boyfriend Li Liang, only to find that he died at home.

Poster of China movie "405 Murder"

After the incident, Qian Kai and Detective Chen Minghui from Donghai Public Security Bureau rushed to the scene. After forensic identification, Li Liangzhi's death was homicide. The police found a tiny bird hair on the victim's wound, an obvious fingerprint on the teacup and two pieces of V-shaped mud in the bathroom. Li Liang's notebook reads: "Sam, I will never let you go!" " After investigation, there are two Asan who are familiar with Li Liang: one is nicknamed "Rubber Fish Asan" and works in Qingxi Farm in Huangshan. The man often gambled and borrowed money from Li Liang, but Li Liang refused. He was seen running out of the building in panic on the night of the accident; The other is that Fang Mingshan, a photographer from Donghai TV Station, once worked with Li Liang, and they had great contradictions. The Public Security Bureau sent Qian Kai to the casino and retrieved the fingerprint of "Rubber Fish Sam". After identification, this fingerprint is different from that on the glass. Then, they learned that on the night of the accident, Fang Mingshan went out on an excuse, and the fingerprints obtained on his camera were exactly the same as those on the glass. Xu Yibin, the public security bureau chief, ordered the arrest of Fang Mingshan, but he did not know where to go. After some pursuit, he was arrested. During the trial, he asked the public security bureau to produce evidence of the crime. At this point, the Public Security Bureau verified the feathers at the scene and confirmed that they were love birds's feathers. This kind of bird is only found in Huangshan Mountain, and Fang Mingshan has never been to Huangshan Mountain. Teacher Chen and Xiaoqian caught "Rubber Fish Ah San" at Qingxi Farm. Asan admitted that he did go to Li Liang's house that night and was going to steal. Just as Li Liang and another man came in, he was busy hiding in the bathroom. When he came out, Li Liang was killed, so he fled the scene in a panic. ...

Once again, Mr. Chen went deep into the Huangshan forest area and learned that a man named Lin Fugen had come to fight love birds.

On his way back, Mr. Chen was suddenly attacked by an unidentified gangster. He jumped into a moving truck carefully to avoid misfortune.

Qian Kai was called by Director Xu to "ask questions". He gradually felt that this was not an ordinary criminal case and the background was very complicated, so he "kindly" advised Mr. Chen not to ask again.

With the support of Lu Hao, the former public security bureau chief, Chen Minghui gradually found out the case. He came to the basement of the Public Security Bureau and found Fang Mingshan. After careful identification, he found that Fang Mingshan was actually a student leader who participated in the "anti-hunger and anti-persecution" movement preserved in a pseudo prison on the eve of liberation. ...

Fang Mingshan told Chen Minghui that he discovered many unknown secrets while filming the development of civilian armed forces in the East China Sea with Li Liang, so he secretly recorded this material and prepared to report it to the Central Committee, but Li Liang noticed and stopped filming, and then a bizarre murder happened.

Through this clue and the glass with fingerprints, Chen Minghui finally found the murderer-driver Liu Guoqiang, but his situation was even more sinister.

One night, he was kidnapped by a group of unidentified gangsters to a cargo ship. Lin Fugen, the mysterious behind-the-scenes, finally appeared. He destroyed the evidence in person-the glass with fingerprints. Mr. Chen was furious and fought alone. Being outnumbered, Xiao Wang arrived in time, rescued Mr. Chen and suddenly interrogated Lin Fugen. Lin Fugen was forced to confess. But at this critical juncture, Xu Yibin, the director of the Public Security Bureau, unexpectedly prepared to transfer Chen Minghui from the Public Security Bureau and ordered Fang Mingshan to be secretly shot!

When Chen Minghui heard the news, he was filled with grief and indignation. He decided to go to jail. With the help of Lu Hao, he rescued Fang Mingshan with a forged arrest warrant. He asked Fang Mingshan to take some materials he had mastered and send them to his old superior's home.

When they left, they encouraged each other: "Everything will pass, only the truth will last forever!" " ""fight! " "freedom! "

Off Fang Mingshan, calmly back to the public security bureau office, bash elbows coldly staring at the panicked director xu. ...