《未知方程式》（Equation to an Unknown）——剧情导读：导演栏现为待后台补全；主要卡司信息暂未录入，题材与标签涵盖剧情、情色、同性、西方伦理，叙事年代脉络集中于1980年前后，地域语境与法国的制作或发行相关，声画语言版本为法语。本站对该片的版本与进度标注为「HD中字」；豆瓣综合参考分约6.1分，近期页面热度指数295。以下为精编剧情正文，便于深度阅览与检索。
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延伸阅读：随机为您匹配几部气质相近、口碑不俗的电影，点击即可跳转详情：人鱼传说，完美宠物：秘密地下室，法国性奴，女优蕾的首尔初体验，变性记，夏季雨，天堂：信仰，以你的肉体呼唤我，以牙还牙，机关枪修女。