Seven Days in a Coffin (2003)

Mali, who slept around with everyone in her town and got pregnant was murdered by an unknown assailant. She had been demanding that everyone who slept with her take responsibility for the pregnancy. No one was too happy about that and one of her lovers killed her but no one knew which one. Her corpse was laid out for a seven day funeral and during that time her ghost appeared and haunted everyone including the undertaker who the spirit seduced.