They were waiting for life to get started. Then the world began to end. At a New York City wedding, on a sweltering summer night, four people are trying to be happy. Yun has everything he ever wanted, but somehow it's never enough. Emory is finally making her mark, but feels the shame more than the success. Andrew is trying to be honest, but has lied to himself his whole life. Fin can't resist falling in love, but can't help wrecking it all either. And then the world begins to end. The four of them watch as one of the wedding guests sits down and refuses to get back up. Soon it's happening across the world. Is it a choice or an illness? Because how can anyone be happy in a world where the only choice is to feel everything - or nothing at all?