Overview: The strange sound and the mysterious happenings continues to occur in the house. The group finally decides to investigate into this matter and Mr. CHONG's son, TING SIN, is elected to lead and direct the operation. Mean- while, MON LI TAN discovers that TING SIN is actually a schizophrenics. He informs everybody but nobody believes. The group even assist TING SIN in locking MON in the basement.