剧情介绍
在位于海滨的别墅内，保罗·德克尔（皮特·范·埃克 Peter van Eyck 饰）用煤气杀害了自己的妻子，并将房间伪装成自杀现场，而自己则戴上水下呼吸器藏在地板下，制造不在场证明。所有人包括警察在内都认定德克尔夫人死于自杀，但是死者的女儿坎蒂（Mandy Miller 饰）坚称保罗才是真正的凶手。原来保罗并非坎蒂的女儿，在坎蒂8岁时她曾随父亲和保罗出海游玩，却目睹了父亲被对方杀害的经过，在此之后保罗变成了坎蒂的继父。
坎蒂虽然疑窦重重，然而保罗却心思缜密、狡猾非常，几乎不露出任何马脚。为了彻底霸占家产，也为尽快除掉隐患，他开始谋划向坎蒂施以毒手…… Paul Decker murders his wife in her Italian villa by drugging her milk and asphyxiating her by gas. He cleverly locks the bedroom from the inside and hides inside a trapdoor in the floor until after the body is discovered by servants. He uses a scuba snorkel connected to tubes on the outside to breathe during the ordeal. Decker's stepdaughter Candy suspects him immediately, especially since no suicide note was found. She also is convinced that he murdered her father years before, but her accusations fall on deaf ears. The ruthless Decker even poisons the family spaniel when the pet takes too great an interest in the mask and realizes he will ultimately have to get rid of Candy too.
坎蒂虽然疑窦重重，然而保罗却心思缜密、狡猾非常，几乎不露出任何马脚。为了彻底霸占家产，也为尽快除掉隐患，他开始谋划向坎蒂施以毒手…… Paul Decker murders his wife in her Italian villa by drugging her milk and asphyxiating her by gas. He cleverly locks the bedroom from the inside and hides inside a trapdoor in the floor until after the body is discovered by servants. He uses a scuba snorkel connected to tubes on the outside to breathe during the ordeal. Decker's stepdaughter Candy suspects him immediately, especially since no suicide note was found. She also is convinced that he murdered her father years before, but her accusations fall on deaf ears. The ruthless Decker even poisons the family spaniel when the pet takes too great an interest in the mask and realizes he will ultimately have to get rid of Candy too.
手法有点离谱。值得一提的是50年代的黑色幽默悬疑偏爱将施害方描绘成受害方（这样说也不够准确）以至观众会为剧情走向捏一把汗，结尾也并不都是恶人自有天收。
父女斗智斗勇的故事，结尾倒是不错。
剧本设置得很好，开头讲明凶手，结尾补全手法，唯一不太完美的就是男主想再次用相同手法除掉小女孩多少有点过于自信了。挺多人觉得小女孩最后的行为有点多余，但主要是为了去掉小女孩“有妄想症”这个结论设计，也算合情合理了。三星半
这结尾 应该彻底复仇才对
男主皮子都泡皱了
20221222 晚上看的小女孩全程高冷脸
差点被小狗破案的一个剧绕了个大圈子，既然小狗被害死了，解剖一下就知道了啊！！
7.4 结尾要是没告诉警察就更好了
有点希区柯克《电话谋杀案》的味道
扣人心弦
The snorkel
结局妙不可言
bug挺多
最后时刻绝妙反转，见证奇迹，可谓天公有眼终会开，恶有恶报时辰到，作茧自缚寻死路，自作孽者不可逭。
还算有趣，但是重复了同样手段。降低了影片的预期，结局挺意外