Sleeping with the Dead (2002)

When a string of bizarre murders plagues Hong Kong, a detective and a doctor team up to try and solve the mystery. Their investigation leads them to Cindy, a woman who was supposed to have died the year before as the victim of a brutal rape. When the killings don't stop, the pair keep coming back to Cindy as their main suspect and are forced to entertain the possibility that someone is trying to exact revenge from beyond the grave.