A young couple frustrated with their mundane lives, Nina and Mario Clemente, are offered the opportunity of a lifetime-to work and live on Onyx, Earth's living moon. However, Nina's belief that Onyx did not exist prior to a shooting that nearly killed her years prior becomes stronger as a series of strange events precede her and her husband's relocation to the ancient habited satellite. She becomes further convinced of her memories once they arrive and begin to learn the secrets of Onyx's people, causing the mystery of what truly happened when she was shot and of where the original world has gone to intensely haunt her.