讲述一个弱智的小伙子,他是健身中心的拖把清洁工,某天,他被玩弄,成了大众群体中的取乐笑柄,他不小心从楼上的玻璃窗摔了下来,意外地跌入了某种化学工业用途的废水里,身体受到了严重辐射创伤,基因突变~ 成了半兽怪人,他决定要复仇,向社会恶势力宣战…This is the story of Melvin, the Tromaville Health Club mop boy, who inadvertently and naively trusts the hedonistic, contemptuous and vain health club members, to the point of accidentally ending up in a vat of toxic waste. The devastating results then have a transmogrification effect, his alter ego is released, and the Toxic Avenger is born, to deadly and comical results. The local mop boy is now the local Superhero, the saviour of corruption, thuggish bullies and indifference. Troma classic with good make-up effects and stunts, a pleasant surprise indeed.