Aek and a group of college friends traveled to Northeast (Esan) province to do research about local culture. Unfortunately, they have found out the secret of Diamond-Embedded Phi Ta Khon and where it’s hidden. The elder in the village told Aek about the mystery about the owner of the mask coming back to take his mask back. Aek, his friends and professor had to face a group of bad people led by Ron, who also wanted to own the mask. The fight for the mask has begun. Aek got injured during the fight but got saved by his girlfriend. Fahsai. When Aek got a hand on the mask, he realized it had been cursed. Whoever owns the mask must be a good person and use the power of the mask to help others. Aek’s life changes forever.