Little Necro Red (2018)

Angela's daughter Anne (also known as "Xiao Hong") mysteriously disappeared, but the police never found her body. When the mother began to unravel the mystery, a religious worship ruled by a female patriarch called a grandmother left a bloody trail. The crazier her mother became, the more suspicious she became: is Annie still alive? This is the cruelest, most twisted Slasher you've ever seen: it's not a fairy tale.