Ngok toi (2010)

Life after death of a fetus inside a woman's body exists as a Womb Ghost. Unnatural termination of such life will turn the baby into the evilest and most vicious kind of spirit. A mental hospital is haunted by spirits, the mysterious miscarriage of a young and beautiful inmate causes the authority to investigate. Only one answer can be given to the existence of such an ungodly creature...Womb Ghost.