身居纽约的人类学家葛瑞拉（Lorraine De Selle 饰）和兄长鲁迪（Danilo Mattei 饰）、好友派特（Zora Kerova 饰）结伴前往亚马逊丛林考察土著的生活习俗。抵达目的地后，他们遇见两个躲避外界追杀的毒贩：麦克（Giovanni Lombardo Radice 饰）和乔（Walter Lucchini 饰）。这两个邪恶的家伙利用当地人帮他们从事毒品生产和交易，稍不顺心便对当地人打骂对待。
正所谓恶贯满盈，善恶有报。麦克因残酷杀害包括土著首领女儿在内的当地人，而激起这群善良人的愤怒。他们拿起武器，对这些入侵的白人展开报复，而葛瑞拉他们也被牵连其中……

Most enjoyable outing from Mr Lenzi and whilst giallo-esquire is really quite a mixed bag. Starting off as a bit of a hippy drippy affair with a young uninhibited couple using their bodies and their guile to get a free holiday, this turns into something much darker. There is real suspense including a splendid Hitchcockian scene in an aviary, lots of nudity and some pretty nasty moments. Irene Papas ( 'Zorba the Greek' and 'Don't Torture a Duckling') lends considerable gravitas with her impressive performance as the mature woman with something of a problem to sort out. Ray Lovelock is appealing as the handsome young man who likes fast cars and faster women but it is the lovely 16 year old Ornella Muti who is always catching the eye. Apparently the almost too perfect nude shots are of a body double but we still get plenty of up the shorts shots as she bends obligingly forward. All three are a great asset and with a decent script and Lenzi's constant inventiveness, this is a fine piece of exploitation cinema.

Luigi“Chinaman”Maietto越狱。他一获释，就立即指派两名党羽谋杀督察，督察的证词曾导致他入狱。探长坦兹被处死，但幸免于难。当地的报纸为他遮遮掩掩，假装暗杀成功了。当坦子病情好转时，他的上司希望他躲在瑞士。但坦兹拒绝了他，因为他打算确保马耶托被重新关进监狱。他会全力以赴。