A scientist performing illegal stem cell research is trying to find a cure for cancer. After the transfer of shark cells is made into a human test subject, the ill man gets well again and it looks like the treatment was a success. But the experiment goes wrong, and the man transforms into monster: half-shark & half-human. But the scientist knows how to use this to his advantage...。在续篇《蝼蛄》中,黑道桑原(北村一辉饰)和建筑顾问二宫(滨田岳饰)从宗教法人的绯闻中找到发横财的机会,开始了与恶人之间展开大战。。