[2] The film stars Mario Maurer as Mak Davika Hoorne as Nak, and Pongsathorn Jongwilas, Nattapong Chartpong, Auttarut Kongrasri and Kantapat Permpoonpatcharasook.

[3][4][5] During the era of King Mongkut, Mak is drafted to serve in a war, forcing him to leave behind his pregnant wife Nak in the town of Phra Khanong.

Shortly after, rumors start circulating in the village that Nak had died in labor and was now a ghost of a very powerful form haunting the house.

The following day, the men visit the market but are shunned by the fearful community who refuse to sell their goods to Mak and run away.

Shin and Ter become convinced that he, not Nak, is the ghost, and their fears are seemingly confirmed when Mak reacts in pain when they attack him with holy rice.

Nak then somehow produces a soaking wet paddle and hands it to Ter, who suddenly recalls that all of them had been thrown overboard, and had already drifted too far away for a normal person to recover.

Ter then stands up on the boat to look between his legs at the group; Nak is revealed to have been the ghost all along as she has extended her arm to place on Mak's shoulder.

Initially, the holy 'weapons' keep Nak at bay, but, in a panic, coupled with Mak's struggle to be with his wife, all of the holy rice and water are wasted, and the monk is accidentally kicked out of the "safety ring" and flees the temple, leaving the four, who had since destroyed the 'safety ring' while trying to run, to face the angry Nak.

A pale Aey then reappears, revealing that he is also human; he was in possession of the ring because he had stolen it from the corpse behind the house to finance his gambling.

Nak uses her supernatural abilities to do chores, play charades (and help Mak win for the first time), scare off villagers attempting to drive her away (who are led by the drunk's son) and even run the town's 'haunted house' attraction.

Pee Mak earned more than 1 billion baht ($33 million) in revenue worldwide (mostly in Asia), and became the highest-grossing Thai film of all time,[3] more than tripling the record held by The Legend of Suriyothai.

The film also screened in Indonesia, Hong Kong, Cambodia, Malaysia, Taiwan, Singapore,[7] Myanmar, Brunei and Japan.