不能和弟妹发生关系

这是三部曲的最后一部，故事围绕着将自己奉献给撒旦的妓女展开。这部影片的内容是极端而黑暗的，令人作呕的情节屡屡出现，充斥着暴力，性，裸体，体液！一群女孩子和一个男人抠喉咙催吐，然后吃掉呕吐物，再吐出来……

　　Driving home late at night during a heavy rainstorm, Glen experiences car trouble. Near where his car gets stuck, he spots a house, knocks on the door and is greeted by an oddly friendly middle-aged man, Arthur, and his younger wife, Cyndi. The strange couple pours him a drink, and then more drinks, followed by an unexpected offer that Glen can’t refuse. Elsewhere, a young woman, Katie, is feeling emotionally weighed down by a secret romantic arrangement that feels like a textbook case of gaslighting. And at the same time, in a nondescript research facility, medical professional Julie begins questioning her role in a bizarre experiment, fearing that she’s doing more harm than good.

 故事背景设定在16世纪的英国，海盗首领莫根船长（拉尔德·克雷加 Laird Cregar 饰）受到国王查理的特赦，并被任命为牙买加总督。一位年轻而勇敢、机智而英俊的年轻人沃林（泰隆·鲍华 Tyrone Power 饰）决定跟随莫根船长前往牙买加。然而，莫根过去的下属、狡猾而残忍的里奇船长（乔治·桑德斯 George Sanders 饰）却拒绝接受莫根的领导，继续在海上进行抢劫商船的行为。为了消灭海盗，沃林率领船队出海，在航行途中偶然与里奇的“黑天鹅号”，并和其他两艘船发生了遭遇战。面临险境，沃林不得不机智地假装前来投降并投靠里奇。通过巧妙周旋和激烈战斗，里奇最终受到了惩罚，他的“黑天鹅号”彻底被摧毁。与此同时，贵族小姐玛格丽特（玛琳·奥哈拉 Maureen O'Hara 饰）对沃林从厌恶逐渐转变为敬佩，最终产生了爱慕之情，展开了一场曲折而离奇的爱情故事。

　　父亲与少年关系生疏，两人决定以一次狩猎之行缓释心结，然而深藏在森林中的灰熊，却早已为他们埋下了生存危机。