The Bookseller follows 11-year-old Mildred (Nella Fisher), whose life takes an unexpected turn when her estranged father Strawn Wise (Elijah Wood), a washed-up Las Vegas illusionist, suddenly reappears. Years ago, after a magical encounter with the once charming Strawn, Mildred’s mother returned to New Zealand. Now, a comical misadventure forces Strawn to care for Mildred while her mother is in the hospital. Their first adventure? A campsite to hunt the mythological Canterbury panther. As this mismatched duo navigates the wilderness, magic tricks and unusual quests, hilarity ensues and they just might find a way to reunite their family.