Four people, they don't know each other but they have a mutual thing about their incomplete lives. When fate gathers them all together, they may find out what's missing from their lives and discover a new world of possibility.
What is going on is no clearer at the end of the first four episodes. That also doesn't really matter all that much. The series is as intriguing as it is heartfelt thanks to stylishly imaginative storytelling and richly developed characters.
