Unholy Song

After tenants play a cursed audio cassette, a landlord must confront the evil spirit of a witch he inadvertently brought home. The entity, the soul of a woman killed by her brother while recording an incantation, begins to torment them. With the supernatural attacks escalating, their only hope is an eccentric priest, Father Bernard, who must use holy relics and faith to cast the demon back into the tape and save them from a hellish fate.