Starring: Sorrapong ChatreeNeeranuch AtiporAt Vietnam's borderline, Suping assigns Thongchai to protect the valuable heptagon diamond while the delivery to Sukit in Thailand. But Thongchai betrays his boss, kills all the companions and steals the diamond. He makes a threat for 20 million from Sukit. Buncha, a night club's owner, hears the news and hires an ex-inspector to investigate in this case. Who will the diamond belong to?