May moves into a new apartment in Hong Kong with her husband Ray and son Chi-lo. While they are moving in, Chi-lo and May see a hideous creature. They tell Ray what they have seen and he suggests moving out. However, as they have already paid a lot for their new home, May and her family decide to stay.
One day, May brings Chi-lo to a neighbour's birthday party. During this time, Chi-lo is kidnapped by the creature, which is revealed to be a deformed, insane woman who has mistaken the boy for her son. After informing the police, May and Ray begin searching the complex. In the parking garage, Ray is stabbed by the woman with a makeshift knife. Critically wounded, he is rushed to the hospital.
