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...
这是一部关于寻找外星人的电影，各位道友智商堪忧……各位想看大脚怪/野人那部的请移步
当一位苦苦挣扎的音乐家搬回她儿时的家时，她发现了一段已故父亲的录音，他承认自己犯下了一桩可怕的谋杀案，声称是为了保护自己免受未知邪恶势力的侵害。起初音乐家对这段录音并不大在意，但随着她年幼的儿子表现出令人不安的行为后，这名音乐家也开始试图阻止这场邪恶势力的到来。
昭和初年，私家偵探魚塚被一老婦人委託調查被綁架女兒的下落。偵探追查下去，卻發現事件和一部消失了的電影《永遠的謎》有關，這部電影比號稱日本最早起用女性演員，歸山敎正的《生之光輝》更早有女演員表演，但被警察禁映而消失。鏡頭跟著主角深入淺草的遊樂區，探索默片年代的戲院，解說的辯士、現場配樂的樂隊、放映前的雜耍表演，當年的電影是很「綜合」的娛樂…… 完全和電影業無關的新人導演林海象一鳴驚人的處女作，比《星光夢裏人》早近三十年採用仿默片的拍法，全部黑白攝影，人物對白全部用字幕卡代替，聲軌只有配樂、效果音等，引領觀眾暢遊世紀初的夢工場。
