I Am the Blues captures Willie Dixon's inimitable voice and character as he tells his life story: the segregation of Vicksburg, Mississippi, where Dixon grew up; the prison farm from which he escaped and then hoboed his way north as a teenager; his equal-rights-based draft refusal in 1942; his work - as songwriter, bassist, producer, and arranger - with Muddy Waters, Howlin' Wolf, Little Walter, Bo Diddley, and Chuck Berry which shaped the definitive Chicago blues sound of Chess Records; and his legal battles to recapture the rights to his historic catalog of songs.