After defeating deadly curses from the previous Pee Nak films, the old crew go on to live their peaceful lives. The hot Thai-Korean star Do min Joon is busy with fan meetings, while Balloon and First sweep their ways up to become top talent managers. It sounds like a happy ending. But a new chapter of horror is awaiting them at the Ghost Mask Festival. The Ghost Mask Festival is a local festival to worship the spirits of ancestors, sacred entities that protect their offspring and bring prosperity and abundance. Do Min Joon, Balloon and First happen to be on holiday during the festival. But the festival of virtue is tainted by bad karma when a mysterious blue-eyed man returns to demand Do Min Joon to fulfill his promise – the promise that he cannot recall when he made it or what it is about exactly. Do Min Joon is being terrorized by the new, mysterious Pee Nak spirit, while Balloon and First, as his manager, have no choice but to share the burden and prepare to join the ride into anoth