Legend of the Evil Lake 2003 ( 5.9)

A thousand years ago, an evil spirit was kept imprisoned in a lake by the first emperor of the Chilla empire. Now unleashed, it possesses the body of Ja Woon-bi, the wife of general Biharang, with the aim to bring down the very dynasty that destroyed his people. Biharang is torn; to kill the spirit, he has to also kill his wife.