A remote but beautiful mountain village, a group of people who are indifferent to worldly affairs. With the impact of the great times, the juniors gradually walked out of the mountains. When beauty comes into this quiet village, evil also follows. What kind of love and hatred is involved in a corpse case? How much good and evil can be brought out? Does being closed mean there is no good or evil? Or have we never heard of it? Will openness necessarily destroy our conscience? Or maybe we are too one-sided? The same case also led to a missing case that has been missing for many years. Under the impact of temptation, has the human heart changed? Or have we given up on the bottom line? Backwardness and avant-garde, poverty and wealth are not the dividing points between good and evil. A boy who was almost abandoned grew up to become a messenger of justice, but his brother and best playmate chose to let go due to temptation. How should he choose? The suspect has been overthrown repeatedly, can he finally be brought to justice? Can the original simplicity and happiness return? Can this ancient village return to peace?