After the Player completes all of the First Gravedigger quests in the Necropolis, Gravedigger Shen will give him/her one last chore to complete. It appears that one of the corpses he recently buried, that of Tanner Fong the Elder, has returned to the home of his son. Since the son contends that the burial didn't keep, he's asking for a refund, or to have someone eliminate the corpse from his house.