By all appearances, Lizzie Simon was perfect. She had an Ivy League education, lots of friends, a loving family, and a dazzling career as a theater producer by the age of twenty-three. But that wasn't enough: Lizzie still felt alone in the world, and largely misunderstood. Having been diagnosed with bipolar disorder as a teenager, she longed to meet others like herself; she wanted to hear the experiences of those who managed to move past their manic-depression...