A guilty man came to the forest where the Ewenkis people live. At this time, he is in a dilemma whether he should redeem or continue to flee. He lived here for a few years and dared not go home. The locals gradually became familiar with him. At this time, the Ewenki will leave the mountain to have a better life in response to the call of the state. The man’s secret was about to be exposed. But what is the real identity of the man? What is the truth about the murder case? These are still many mysteries.