Inspector Chautala Sets Out to Jokergunj

Chandramukhi goes to the library to find a book on Joker's psychology. Librarian tells her that the book had come 30 years back but is not read by anyone since then. He also tells her about a place called Joker Gunj about 30 km from Rawanpur. Gopi sees Billu trying out Joker's mask. Later even Gopi is beat up by Joker and his selfie taken. What will they do now?