He was the richest man in America, the world at his fingertips, and yet he was a prisoner to his own dark fears. His achievements were astounding – he created the fastest plane on the planet, was the driving force behind the largest aircraft ever built and was a pioneer in film making – and yet he is remembered for the eccentricities that drove him from hero to hermit. In his heyday, he was a romantic figure, with movie starlets flocking to be seen on his arm, and yet he spent the last 26 years of his life as a recluse, obsessed with cleanliness and controlling every aspect of his environment even as he sunk deeper and deeper into madness.