An affluent medical professor, Komiya, and his bossy wife, Tokio, are to look after Setsuko, their high-spirited niece from Osaka. Setsuko is a liberated woman who does what she wants, including smoking, even though she is a minor. On Saturday, the professor does not feel like going to his weekend golf game, but his wife packs him off anyway. So he leaves his bag at the apartment of his student Okada, and goes to a bar with a friend. Setsuko traces him there, and insists that he take her to a geisha house. When she gets rather tipsy, the professor calls Okada to take her home, while he sleeps at Okada's. The wife becomes suspicious of Setsuko when she sees Okada bringing her home, and also of her husband when she discovers that he did not go golfing.

這是一個外星人和地球人混居的時代，在外星移民的壓迫和統(tǒng)治下，流傳百年的武士道精神已然沒落，然而，在一片傾頹之勢面前，依然有一群人默默的遵守著他們的準則和正義。家道中落的青年志村新八（菅田將暉 飾）在一場意外中結(jié)識了萬事屋老板坂田銀時（小栗旬 飾）和天人少女神樂（橋本環(huán)奈 飾），三人成為好友。他們共同的朋友桂小太郎（岡田將生 飾）無故失蹤，經(jīng)過調(diào)查，一個名叫岡田似藏（新井浩文 飾）的男人和一把名為“紅纓”的妖刀浮出水面。

奮發(fā)向上的醫(yī)學院學生寶拉（FrankaPotente），好不容易獲準進入頗負盛名的海德堡研究機構(gòu)，她希望能繼承祖父的衣缽，成為一名出色的醫(yī)生。在上解剖課時，她發(fā)現(xiàn)解剖臺上的尸體竟是她認識的人，便積極暗中調(diào)查尸體的來源，發(fā)現(xiàn)有一個以殘酷手法研究活人的神秘社團在學?；顒樱嗌系耐瑢W也一一離奇失蹤，她決定繼續(xù)挖掘真相。

　　業(yè)余潛水健兒比利獲得公司給予的假期，便與未婚妻黛安娜，好友阿祖，珍妮同赴菲律賓宿霧的潛水圣地度假潛水……
　　正當眾人在美麗的沙灘中燒烤玩樂的時候，比利獨自去潛水，眾人等到黃昏日落還不見比利回來，都感到事情不妙，黛安娜更是心急如焚，阿祖，珍妮安慰，最后終于報警求助……
　　阿祖，珍妮要回香港上班，故別過黛安娜先行離去，黛安娜為要得知比利的消息，故再到警局追問，警員說已派出直升機和通知附近漁民進行搜索找尋比利下落。而比利冤魂不息，幾次出現(xiàn)在黛安娜面前告知自己被殺的消息和地點，奈何黛安娜卻完全看不到，令比利的鬼魂焦急不已……
　　黛安娜終得比利之托夢，往比利被殺的荒島進行搜索，發(fā)現(xiàn)了比利骸骨，悲動不已，突遭日本軍人突襲，驚徨而逃……而警方得黛安娜之告，前往荒島拘捕該日本軍人，黛安娜卻獨在沙灘上哀悼死去的比利……