剧情简介
米歇尔人到中年，启示是一位风韵犹存的单身母亲，启示面对工作压力和女儿的升学问题，米歇尔虽有床伴，但两性生活一直不尽人意。有一次和女儿在餐厅吃饭，偶然结识一位陌生男子瑞恩，在他的带领下，米歇尔不如意的性生活得到满足并借由SM逐步打开性幻想。直到有一天米歇尔回家，意外发现瑞恩和她女儿进行SM、在床上缠绵……
启示
米歇尔人到中年，启示是一位风韵犹存的单身母亲，启示面对工作压力和女儿的升学问题，米歇尔虽有床伴，但两性生活一直不尽人意。有一次和女儿在餐厅吃饭，偶然结识一位陌生男子瑞恩，在他的带领下，米歇尔不如意的性生活得到满足并借由SM逐步打开性幻想。直到有一天米歇尔回家，意外发现瑞恩和她女儿进行SM、在床上缠绵……
金贤成
回复 :Significant Other follows a young couple (Maika Monroe & Jake Lacy) who take a remote backpacking trip through the Pacific Northwest, but things take a dark turn when they realize they may not be alone.
罗志祥
回复 :一个不听任何修改意见的编剧（宋木子 饰），一个什么修改意见都听的编剧（合文俊 饰），一个自大，一个胆大，组成银河系最强（ruo）乙方，向顶级甲方公司发起才华挑战。影片荣获第17届FIRST青年电影展评委会大奖、最佳编剧两项大奖。
三木科
回复 :This early 70's giallo by Umberto Lenzi is certainly among the best in his filmography and also in the whole genre. Personally I think Lenzi's best films are the funny cartoon-turned-film Kriminal, the stylish giallo Seven Blood-Stained Orchids, the explosive Napoli violenta and this. In the eighties he did plenty of film trash in form of Eaten Alive, Hitcher in the Dark or Black Demons, all of which are ripping something off and/or very dull and slow moving. Knife of Ice came when the giallo boom was at its hottest and the result is convincing.Technically the film is superb, containing great cinematography in the beginning when we learn about the main character's trauma towards trains. From this point on, Lenzi shows us his ability to benefit the widescreen and, for example, the bicycle ride near the forest is genuinely beautiful! This scene also shows Lenzi's ability to build suspense, very slowly but meaningfully. After all, there aren't so many murders in the whole film, only the suspense circulating around the murderer's identity.One suspect is a devil worshipper which brings new aspects to the mystery. Since the final scene takes place in a church, one can wonder if Lenzi wanted to comment on something, maybe the hypocritical morale of church and superstition. The main character (Carrol Baker) is mute which demands a lot from her face and eyes. The actress works very well, giving us a believable performance circulating around the emotions of fear and mental pain. The other actors are good, too. The finally, however, may not give too positive a sight about female sex since they all are expressed rather negatively in the film, one way or another. Still this is easily among the most noteworthy in the genre, not as bloody as the Argento films, for example, but equally suspenseful and visually also interesting.
