郑家有两个女儿，大女儿郑好，二女儿郑秀姐姐郑好从小心脏有点问题，父母娇惯她，妹妹郑秀也处处让她三分，因此养成了她任性而又霸道的个性，高考来临了，姐妹两个在同一考场，因为给姐姐递条子，郑秀被清出考场。郑好考上了大学……

Thomas P. Manning, businessman and chess expert, mysteriously shot in a locked room, dies clutching some chess pieces. Police are baffled, and finally abandon the case. Six months later, victim's daughter Leah Manning, stung by a scurrilous book about the case, enlists the aid of Charlie Chan and Number 3 Son. Addition…