Can you keep a secret? I haven't heard anyone for a long time until they arrived. They came for help and they broke the rules. I tried to warn them but it was too late. Little did they know. The party is over. Who will survive?。民国年间,城中发生多起富商自杀案,死者脸上都会带有安逸满足的微笑。警局本想将这些“自杀案件”简单处理,不愿多生事端。可女警官龚晓晓却感觉事情蹊跷,有可能是连环谋杀案件,她孤立无援,只能找到侦探马宝。。