本片改编自真实事件。19世纪末，伊格纳西奥·德拉·托雷与墨西哥总统的女儿波费里奥·迪亚斯成婚。伊格纳西奥过着双重生活：他在传统的政治世界中声名鹊起，同时又是秘密社团的成员之一。他一直维持着这种微妙的平衡，直到他结识了社团的第42位成员埃瓦里斯托。一次，他举办的派对（也被称为“秘舞41”）遇到了警方的突袭检查，导致丑闻曝光，引起轩然大波。

　　Martin, an aging man, is abandoned in a psychiatric hospital, where a pharmaceutical business is conducting illegal drug tests. His granddaughter, Ana, discovers that her own father is directly involved and takes action into her own hands. As Ana and Martin run away to grant him his last wish, they must fight for their own survival against the vicious interests of the powerful company. Based on a true story.