Alan Yentob tells the story of one of the enigmas of modern music, Scott Walker, who gave up pop stardom in the 1960s to plough a more experimental and esoteric musical furrow. Featuring rare exclusive interview material of Walker at work on his latest album and contributions from a gallery of musicians and producers touched by his work, including Brian Eno, Marc Almond, Johnny Marr, Alison Goldfrapp, Damon Albarn, Jarvis Cocker, and Ute Lemper.