Moon is everything Christine isn't. She's confident, impulsive, artistic... and though they both live in the same Chinese American community, Moon is somehow unlike anyone Christine has ever known. When Moon's family moves in next door to Christine's, Moon goes from unlikely friend to best friend. Moon even tells Christine her deepest secret: that she sometimes has visions of celestial beings who speak to her from the stars. Who reassure her that Earth isn't where she really belongs. But then catastrophe strikes. After relying on Moon for everything, can Christine find it in herself to be the friend Moon needs?