Paul Simon once sang, “I am a rock, I am an island”—and he wasn’t lying. Simon’s songwriting brilliance is as complicated as the man himself. Beneath the chart-topping, era-defining music, he was a minefield of neuroses: obsessed with control, wracked with self-doubt, and locked in one of music’s most outrageous feuds with his angel-voiced partner, Art Garfunkel. Behind the hits lay a trail of controversy, failed love affairs, wild, substance-fueled nights with Princess Leia, and a genius who couldn’t stop unraveling.