跨足全球的VALA企業透過威脅利誘勾結腐敗貪婪的政府單位,成功在市面上釋出一種未經測試的疫苗「Nh25」。為了維持家計的傑卡拉摩(克里斯多福古莫瑞斯 飾)原本為邪惡的VALA企業賣命,卻因緣際會成為背負使命決心復仇的「闇夜殺神」,誓言終結草菅人命的斂財疫苗繼續散播,引來VALA召集一群唯利是圖的傭兵死命追殺…究竟一心被仇恨蒙蔽的「闇夜殺神」能否堅守正義?超級英雄拯救世界是否是唯一的結局?
Based on the novel by Karel Capek, the prominent Czech writer of the early 20th century who coined the word robot for his play R.U.R., the story revolves around a discovery of Krakatit - a powerful explosive - by Prokop, an experimental scientist who, following an accidental explosion in his lab, slips in and out of delirium. When he realises that, in a delirious period, he has given the formula for making Krakatit to one of his colleagues, he tries to find the man, who does not realize how dangerous a thing Krakatit is. In the process, he nearly gives his discovery away again to foreign interests, a group of anarchists, and even greater forces of darkness...