Library.

“The Thai film "Pee Mak" (based on the Mae Nak legend) became one of the highest-grossing films in Thai cinema history.”

Reliable reporting shows Pee Mak was a record-setting Thai box-office success and was widely described at release as the biggest Thai film at the local box office. That clearly supports the narrower claim that it became one of the highest-grossing films in Thai cinema history. The main caveat is disagreement over the exact gross and whether cited figures are domestic or worldwide.

“In Thai folklore, Mae Nak died during childbirth while her husband Mak was away at war, and she became a Phi Tai Hong Thong Klom (a feared female spirit).”

The folklore story is substantially accurate: Mae Nak is widely described as dying in childbirth while Mak is away at war or military service, then returning as a feared ghost. The main caveat is that sources vary in the exact Thai term and romanization for her spirit type. Some describe her as a pregnancy-death ghost within or alongside the broader phi tai hong category rather than using one fixed label.

“A shrine dedicated to Mae Nak exists at Wat Mahabut in Bangkok, Thailand, and visitors leave offerings there including traditional Thai dresses, cosmetics, and toys for her baby.”

Evidence consistently shows that Wat Mahabut in Bangkok has a shrine dedicated to Mae Nak. Multiple independent descriptions also report visitors leaving votive offerings there, including Thai dresses, cosmetics, and toys associated with her baby. Some sources focus only on basic prayer items, but that does not conflict with the broader record of additional offerings.