Meredith visits the Munchen Museum of Natural History to get an ID on the creature she killed on Halloween night. Jonathan has second thoughts about Mrs. Yoole's plan to demolish more houses. When Steve goes looking for Brian, he gets his hands dirty - in more ways than one.
It's Halloween in Munchen, and Steve gets a visit from an old friend. Jonathan investigates Mrs. Yoole's shady past, and Meredith and Miles get more than they bargained for when they go trick-or-treating in Munchen's abduction-plagued Ward 2.