Set partly in the 19th century, it shares some plot details with an earlier series, Jao Nang, which aired in 1990, and on which some observers believe it was based.
These ghosts are powerful and fearful, and if one succeeds in entering someone, it will possess them for life, feeding on the intestines and blood of human victims.
A Pee Fah can be banished from its host by the performance of a special dance, in which the exorcist moves in whirlpool-like motions.
The original version of the legend tells of a Prince who was a practitioner of magic, and who discovered an incantation that enabled him to enter and possess the bodies of living victims.
In the 19th century, in the northeast of Thailand, Princess Nang Fah leaves her palace with two of her royal servants, to go and live in a rural village.
At the time, the area is being haunted by a fearful spirit, the Pee Fah, which, according to legend, possesses its hosts and, using their bodies, feasts on the intestines and blood of its human victims.
The princess was, in fact, the granddaughter of an exorcist who had previously combated the spirit, and she had been practicing the traditional exorcism dance for years as she grew up.
Having to dance its subtle movements while wearing traditional dress, Woranut needed to practice for several months before shooting started.