1，费拿拉小镇，工程师斯瓦诺（Kim Rossi Stuart 饰）邂逅了女教师卡门（Inés Sastre 饰），他们一见钟情，卡门却拒绝了斯瓦诺的吻。当他们三年后再次相遇时，斯瓦诺则在肉欲面前止步；
　　2，海滨小城，某导演（John Malkovich 饰）信步游荡时遇到了美丽的女子（Sophie Marceau 苏菲•玛索 饰）。她向导演坦白曾亲手杀害自己的父亲。他们并未因此疏远，反而缱绻缠绵；
　　3，巴黎，妻子离开不忠的丈夫，寻找租房时遇到了失去妻子的卡罗（Jean Reno 让•雷诺 饰），他们似乎找到了共通的心绪；
　　4，英俊的男孩爱上了一个姑娘（Irène Jacob 饰），他尾随、表白，却得知她将要把自己献给上帝。
　　本片荣获1996年意大利电影新闻记者协会银丝带奖最佳编曲、1995年威尼斯电影节费比西奖。

灯光昏暗迷离的某同志酒吧，外表美丽性感却面带忧愁的女子（阿蜜拉·卡萨饰）在厕所割腕自杀，但随后便被一个男同性恋者（洛可·希佛帝饰）救下。经过一番交谈，女人和男人之间达成一笔交易，女人付费，男人则陪她度过四个夜晚。 俩人经过一番交谈，在这短短的四天里，男人和女人就两性关系展开了针锋相对且危险诡秘的对话

　　This long-lost masterpiece of hardcore gay erotic cinema centers on a handsome young stud who rides his motorcycle through myriad sexual encounters, from a soccer game’s locker room to a phantasmagoric and deeply melancholy orgy. A labyrinth of all-male fantasies whose outstanding beauties always end up fading away while leaving their sensual protagonist dealing with his own loneliness, EQUATION was directed with supreme grace by the mysterious Dietrich de Velsa (aka Francis Savel/Frantz Salieri). A former painter, de Velsa was also the owner and artistic director of La Grande Eugène, one of the first drag cabarets in Paris. Years later, he collaborated with Joseph Losey on MR. KLEIN (1976) and DON GIOVANNI (1979). His one and only film, EQUATION TO AN UNKNOWN stands as one of the most extraordinary erotic films of all time.
　　“The most melancholic porn film I’ve ever seen. It’s very sad, and aesthetically beautiful. Just a young man wandering through several depictions of love and choreographies of love-making; it’s like a ceremony, a ceremony of fantasies, especially the last sequence where the main character recalls all his previous fantasies, which come one by one around his bed and make love to him. I think it’s one of the most beautiful film sequences of French cinema.” –Yann Gonzalez