In the 1990s, a raging fire broke out in the forest beneath Ghost Laughing Stone in Xishan. After the fire was extinguished, two gruesome corpses were discovered. Was it murder? Suicide? Or an accident during a conflict? Just as the investigating detectives were at a loss, a small knife engraved with the character "Hu" was found at the scene, catching their attention. To clear his name, Hu Yanyun embarked on a journey to find the killer. However, ten years later, in a locked cabin in the woods, another murder occurred. Faced with the bizarre and inexplicable case, Lin Xiangming told Hu Yanyun, "To find the truth, you'll probably have to dig deep into history." Another ten years passed. Some of the witnesses to the case were impoverished, some had struggled in the business world, some were old and frail, and some were seriously ill... After experiencing all the flavors of life, they all returned to Ghost Laughing Stone once again. Just when everything seemed settled, Hu Yanyun inadvertently glimpsed a corner of the truth. Shocked, he remembered Lin Xiangming's words, and boarded a train heading north, "traveling" through the long years to the beginning of it all—the turbulent 1960s...
上世纪九十年代，西山鬼笑石下的山林燃起熊熊大火，大火扑灭后，惊现两具死状骇人的尸体。是他杀？是自杀？还是冲突中发生的意外？正当办案刑警一筹莫展之际，现场提取到的一把刻有“呼”字的小刀，引起了他们的注意。为了洗清嫌疑，呼延云踏上了追凶之旅，谁知十年之后，门窗反锁的林间小屋中，命案再次发生。面对诡异莫名的案情，林香茗告诉呼延云：“要想找到真相，恐怕得去历史的深处发掘一番。”一晃又是十年过去，案件的亲历者有的穷困潦倒，有的商海浮沉，有的垂垂老矣，有的重病缠身……在历经世间百味，尝遍人间甘苦之后，他们不约而同地再一次回到了鬼笑石下。就当一切尘埃落定的时候，呼延云却在无意中窥探到了真相的一角。震惊之余，他想起了林香茗的话，动身坐上了北上的列车，“穿越”漫长的岁月，前往一切的起点——风起云涌的上世纪六十年代……
上世纪九十年代，西山鬼笑石下的山林燃起熊熊大火，大火扑灭后，惊现两具死状骇人的尸体。是他杀？是自杀？还是冲突中发生的意外？正当办案刑警一筹莫展之际，现场提取到的一把刻有“呼”字的小刀，引起了他们的注意。为了洗清嫌疑，呼延云踏上了追凶之旅，谁知十年之后，门窗反锁的林间小屋中，命案再次发生。面对诡异莫名的案情，林香茗告诉呼延云：“要想找到真相，恐怕得去历史的深处发掘一番。”一晃又是十年过去，案件的亲历者有的穷困潦倒，有的商海浮沉，有的垂垂老矣，有的重病缠身……在历经世间百味，尝遍人间甘苦之后，他们不约而同地再一次回到了鬼笑石下。就当一切尘埃落定的时候，呼延云却在无意中窥探到了真相的一角。震惊之余，他想起了林香茗的话，动身坐上了北上的列车，“穿越”漫长的岁月，前往一切的起点——风起云涌的上世纪六十年代……
