Nida is a single mother who takes care of her anti-social son who has locked himself in his room for five years. The only way to communicate with her son is to write on a piece of paper and slip it under the door. But, when outsiders start to get curious about what is going on behind the door of her son's room, a series of terrible events starts to happen.
Sinjai Plengpanich
Kanya Rattanapetch
Teerapong Liaorakwong
Khomapat Attaya
Pongpitch Preechaborisuthikul
Chatsoroth Thanuthipayakul
Patipan Supsawatdichot
Salina Rattana
Parinda Pinitchana
Thananop Bhalbulaya
Suthep Tangthaveesukho
Chayopas Potrepetch
Nopporn Kirdsilpa
Mangkorn Praken
Taweewat Wantha
Bhandit Thongdee
Phanphat Chuebandhit
Jirawat Santaratchai
Monaiya Tharasak
Thammarat Piyarom
Buthsayarin Chantaniyamanon
Tanwarin Sukkhapisit
Arporn Meebangyang
Lertsak Luedjeen
Shunji Shiro Hanai
Ratchata Panpayak
Taweelap Akethammakij
Alisa Dissamal
Ruthaiwan Wongsirasawat
Stephen Thomas
Katarzyna Ancuta
Solarsin Ngoenwichit
Irach Ritsureekul
Chaiyakorn Jitpraneechai
Ungwara Phuengtham
Kanokwan Chandee
Monchai Chanprakon
Virapat Lakana