Omnibus pays tribute to rock legend and founder member of Pink Floyd, Syd Barrett, the creative genius behind the band's early pioneering music. His departure from the band, after a drug-induced breakdown, was a bitter blow for them all, but hs legacy remains hugely influential. As this film tells of Barrett;s disintegration and struggle with the demons in his head, members of Pink Floyd describe the ways in which he still haunts their lives and their music