The Sinister Caretaker

Qin Zhu hires a caretaker, Li Yulan, to look after her elderly mother Jiang Manzhu. Outwardly gentle, Li Yulan secretly treats Jiang Manzhu as a cash cow and abuses her. Li Yulan goes to great lengths to cover her tracks, but Qin Zhu grows suspicious and ultimately uncovers Li Yulan's crimes.