The provincial department has set up a special team to solve the most bizarre, bizarre and unsolvable serious cases in the country.
Bodies sealed in walls, peepers hidden in the ceiling, abandoned factories crying late at night, perfectly disguised suicide scenes...
Every corpse hides the darkness of human nature.
Every murderer was once an ordinary person.
Team leader Chen Mo carries the secret of his sister's disappearance and searches for the truth in countless murder cases.
Until he discovered that all the cases pointed to the same black paper flower.
What you see is a murder, what I see is a human heart.