Watch Online Free on Watchseries. Described as ‘The Mardi Gras from Hell’ and ‘Thai Halloween" PHI TA KHON is a ghost festival that takes place every year in the Isan province of Northern Thailand. Filmed on location by Robert Millis and Richard Bishop in June 2004, Phi Ta Khon: Ghosts of Isan, is shot from the perspective of a participant, ensuring an intense and immersive experience for the viewer