In the pursuit for perfect memory there are many techniques. One of the most widely known is the Memory Palace. Because it exists in the imagination there are no boundaries to a Palace's size, or scope. Raymond Bruno is a modern memory prodigy, but there is one thing he lacks... He doesn't remember his past. But when a nefarious organization seeks to extract vital info from his head, those unlocked memories are the only key to his, and humanity's, survival.