A group of high school friends reunite after two years when one of their fathers' committed suicide. They all spend the night at their friend's place. When darkness falls, strange things begin to happen to them one by one. It is as if someone is using the black arts on them in revenge for an act this group of friends committed together back at high school.

Set right before the fall of Thailand's old capital, Ayuttaya, Bang Rajan draws on the legend of a village of fighters who bravely fended off the Burmese armies. With no support from the Royal army, the villagers drives the invading Burmese away many times until their names have become legendary during the time. As each subsequent battles becomes fiercer, the villagers tries to forge a canon to battle the enemy in a final battle where everyone, women and children included, die in combat.

Jued, a nightclub comedian, has a wife that's a bitch. Everyone he knows takes advantage of him and pushes him around. One day he finds and keeps a mysterious magical box. After that his life and relationships with everyone changes.