Once upon a time, a vintage photo album fell into the hands of the French cinematographer Sebastian Lifshitz, in which the life of a lesbian couple was documented. The old photographs impressed the director so much that he began to collect photographs of representatives of non-traditional orientation of the first half of the last century. Being a creative person, he decided to create a documentary Les Invisibles, which tells about the representatives of the LGBT community that arose between the first and second world wars - at the beginning of the last century.