Their love is against the laws of a merciless state--but the heart has its own power. For rollercoaster designer Theo, living on the edge is just part of the job. He's used to wandering the world perfecting thrills, his heart immune to commitment. But then a commission in repressive North Korea exposes him to emotions he's never dared to feel. Tour guide Min has a soul that wants to soar, but she knows it's safer to build walls...