直到10年前发生的肇事逃逸案件的诉讼时效届满前两个月，有关上述案件的调查记录仍堆在朴侦探的案头。在朴晋升到首尔一个主要部门的当天，收到一条手机短信。

Until two months before the statute of limitations of the hit-and-run incident happening ten years ago is expired, the investigation records about the case above are still piled up on detective Park's desk. On the day of Park's promotion to a main department in Seoul, there comes a Mobile message.