Karl Lagerfeld was an enigmatic figure who spent his life reinventing himself. He ruled the fashion world for decades, making history with his achievements at Chanel, Fendi and his own brand. An extraordinary personality, a fashion Stakhanovite, a tireless worker who created day and night until his last breath. A flamboyant man too, in his appearance and in his words, known for his outbursts mixing perfidy, provocation and self-deprecation. He was also an illusionist, a provocateur, a controversial icon, who used the truth - particularly about his past - to embellish his legend. But where does this determination come from? What were his inspirations and motivations? And behind his enigmatic façade - with his tight suit, ponytail and dark glasses - who really was Karl Lagerfeld?

Sex Fashion and Disco is a documentary film concerning Antonio Lopez (1943-1987), the most influential fashion illustrator of 1970s Paris and New York, and his colorful and sometimes outrageous milieu.