Sleepwalking suddenly spikes in town and Nancy questions whether Frozen Heart murders has been solved.

While Nancy and her friends race to find the relic that could finally untangle George’s soul from Odette Lamar’s, Carson and Ryan are affected by a mystical substance that prompts a temporary return to the lowered inhibitions of adolescence.

Nancy, Bess, Agent Park and Temperance have to join forces when an attempt to trap a killer ends up unintentionally unleashing a deadly supernatural entity that feeds on people’s sorrows. Meanwhile, Ace and Ryan discover a haunting at the Historical Society, and George meets a friend from Nick’s past who may have secrets of her own.

Nancy searches for a missing person targeted by Temperance, who has also placed a fatal hex on the kids of the Youth Center. With the solution to the Frozen Hearts mystery almost in their grasp, a shocking reversal puts the Drew Crew in the crosshairs.