Ke Xiaoyang never thought that he would become the partner of legendary detective Li Changyu. From the wood chipper murder case in a Connecticut mansion to the Simpson murder case that shocked the world; from the investigation of the massacre in war-torn Croatia to the mystery of the "witch killer" in cult rituals - what they faced was a perfectly disguised crime.
But Li Changyu knew that no matter how perfect the murderer was, he would leave traces.
A fiber, a grain of pollen, a drop of dried blood... Under the microscope, the deceased will tell his final testimony. Because evidence doesn't lie, people do.
And the truth is often darker than imagined.