The four ladies run across a common enemy of them in the past, whose name is CHONG MA LEI, at a party. They seize the chance to taunt and jeer at LEI. LEI was their competitor in a volleyball match at school. She played a trick in order to win. LEI challenges them to another volleyball match at the party. In order to retaliate, they accept her challenge. They are vexed about as to where to find enough people to join them. BUD, FAI and MEI agree to help them some help. BUD acts as their coach. The four ladies bruised their faces when practicing. They turn to Dr. YUNG, whom they met at the party, for treatments. NI discovers that LEI has carried out plastic surgery on her nose. She therefore suggests her mates focusing on hitting LEI’s nose in the match. NEI is hurt and has to quit the match. LEI’s dead body is found at the restroom of the volleyball court. YUNG examines her body and discovers that she died of suffocation……