This thought-provoking documentary ties together the thoughts of musicians, scientists and engineers today in an effort to address the timeless question "Why music?" Through their personal stories, theories, and responses, we explore the intimate relationship between music and the human body, featuring interviews with Matt Sorum (Guns n'Roses), John Frusciante (Red Hot Chili Peppers), George Clinton (Parliament), Elijah Wood (Lord of the Rings), and many more.