Considered as a "degenerate" artist by the Nazis, Oskar Schlemmer (1888-1943) was an interdisciplinary pioneer. He excelled in arts as a painter, "mural painter", sculptor, choreographer, decorator, dancer and theorist. Schlemmer was part of the ones who reflected on the links between arts, new materials and technical advances. He was invited to join the tutorial staff of the Bauhaus where he taught and did fundamental research for 9 years. His contribution to performing arts is particularly rich. He laid the practical and theoretical foundations of abstract dance and theatre. This artist's work arouses a growing interest, he was a pioneer in performing art. With for the first time, numerous unpublished archives and documents (lithography’s, drawings, paintings, sets, landscapes, costumes, masques and movies of the choreographies) supported by his grand son Roman C Schlemmer testimony, this documentary is a tribute to the artist and the man who lived trough two world wars and finished his life in poverty.