Quentin (Nat Wolff) has had a crush on his neighbor Margo (Cara Delevingne) since he was a child. However, Margo, who has a beautiful appearance and a cheerful personality, has never lacked suitors and has a boyfriend, so Quentin chooses to bury this feeling deeply in his heart. Late one night, Margo accidentally sneaked into Quentin's room, and she begged Quentin to do her a favor and help her revenge her cheating ex-boyfriend. But the next day, Margo mysteriously disappeared without leaving any clues, and her experience with Quentin that night became a secret forever. Quentin knew that things were not as simple as they seemed, so he decided to find Margo's whereabouts by his own strength. Clues were discovered bit by bit, and a place called Paper Town gradually surfaced.