A Thai playboy cons a girl into bed and then leaves her after finding out she is pregnant with his child. She commits suicide alone in her apartment and her ghost haunts those nearby. The apartment block owner calls upon a series of eccentric shamans to exorcise her spirit from the premises.
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.