Sequence of exhibitions: Palais de Tokyo, Paris, February 14-April 27, 2008; "Once is always twice", Institute of Contemporary Arts (ICA), London, April 25-June 22, 2008; "Never shies away from adopting bootleg versions of itself into its family", Kunst Halle Sankt Gallen, November 22, 2008-January 25, 2009; "Best after the end", La Conservera, Ceuti/Murcia, May 17-August 15, 2009; "Ends in guise of return", Kunsthalle Wien, Vienna, April 15-June 7, 2011. "Cellar Door" is a series of projects (installations, opera, book, etc.) which draws on Loris Gréaud's interweaving interests in art, architecture, and music. One could say that Gréaud's practice is characterized by a desire to fuse different fields of knowledge and activity, in a manner which is both futuristic and utopian. His modus operandi is in fact comparable to that of cinematic production (involving collaboration and co-authorship), and he often works with experts from diverse disciplines (including architects and scientists). Gréaud's work is orientated to ideas and processes rather than finished form, and his projects are liable to manifest themselves in different ways over time, and to move between rumour and fact.