The Unseeable (2006)
The Unseeable ( or Pen Choo Kub Pee; RTGS: Pen Chu Kap Phi) is a 2006 Thai horror film directed by Wisit Sasanatieng. The first film of another writer's screenplay by the director, the writer is Kongkiat Khomsiri, one of the "Ronin Team" credited with directing the 2005 Thai horror film Art of the Devil 2.
More at Wikipedia.