Thai title: เพชรสลัม
Director: สุรพล อุระชื่น
Main actor: Chatchai Plengpanich,Kanchit Kwanpracha,Krai Kanchit,Chat Mongkolchai,Pumi Patanayut
Main actress: Apiradee Pawaputanon,อรุโณทัย จิตรีขันธ์
During a parliament session inauguration, two members of a party are shot by a hitman. One dies. The son, called Ek (Chatchai Plengpanich), decides to investigate in order to find the murderer and motive. Ek locates Saeng, the hitman but this one is killed as he didn't do his job properly. Saeng's sister, Sopha, sees Ek's face and believes he shot her brother. Damrong, deputy (ผู้แทน) of the same party is also shot and killed. Wadee (Apiradee Pawaputanon), his girlfriend, also wishes to know the motive. Police suspects bad politics motives. Pramod is the political opponent of Damrong. San, policeman, is investigating on this case. Ek is captured by some ruffians while investigating. Chat is the ruffians’ leader who killed Saeng. San helps Ek on time but Chat is shot before disclosing any information. Sopha comes to apologize to Ek on her behalf of her dead brother. Wadee wishes to continue Damrong's goal to build a school in a slum. There is style opposition between Sopha, pure lady working as singer at nighttime and Wadee. A romance starts between Ek and Sopha. Ek needs also to spend time with Wadee on the project to build a school. Ek identifies that the head of ruffians was driving the motorbike used by Saeng to shot Damrong. He is linked to Pramod and his acolyte Vinai, highly suspected as corrupted politicians. By investigating on Pramod and Vinai, Ek is captured but released by Wadee. Pramod gets rid of Vinai as he is getting too cowardly and afraid of investigations so he cannot be trusted anymore. Ek is accused of Vinai murder. Meanwhile Sopha succeeds to get Pramod’s secret documents showing his involvement in illicit business. Ek's uncle is killed while trying to protect Sopha. Sopha is kidnapped. As they cannot wait for the police, Ek and Wadee have no choice but to storm Pramod's home in order to rescue Sopha. It is a typical action movie from 1980s decade related to ruffians and featuring many shootings and fights.
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