Returning from her quest in the Somnium Realm, Lily returns home only to discover evil nightmares have invaded the waking world, so she sets off on a worldwide quest through time to find other deram keepers and save the world.

Hapless family man Paul Matthews finds his life turned upside down when millions of strangers suddenly start seeing him in their dreams. When his nighttime appearances take a nightmarish turn, Paul is forced to navigate his newfound stardom.