According to the British music magazine "Mojo", the title was also inspired by a chapter of Robert Rosen's book "" (2000) called "Chapter 27." Rosen's book explores the numerological meaning of the number 27, "the triple 9", a number of profound importance to John Lennon. Lennon was deeply interested in numerology, particularly "Cheiro's Book of Numbers", along with nine and all its multiples. It was Chapman's goal, according to Rosen, to write Chapter 27 "in Lennon's blood". Rosen wrote on his blog, in late 2006, that "the inherent truth of my contention that the film’s title was inspired by "Nowhere Man" remains unchallenged—because it’s self-evident to anybody who’s read the book."