Black Ant

Su Yan, secretary to the director of the Linhe City Public Security Bureau, participated in a competition TV show without the permission of the leader, and won the championship with her partner Zhang Qiuyan. However, Zhang Qiuyan was murdered at home that night, leaving mysterious "black ants" at the scene. Su Yan therefore became a suspect, and he volunteered to join the criminal police team. Su Yan met Sun Hong, cousin of the deceased Zhang Qiuyan. Sun Hong and newspaper editor Xue Cheng are in love, and Xue Cheng is Su Yan's literary pen pal and teacher. Xue Cheng's uncle is also Sun Hong's boss. When the police were looking for the criminals, new murders occurred one after another, and the deceased were all related to Sun Hong. Moreover, after each crime, the murderer would take away a small bankbook and leave black ants at the scene!