When he was seven years old, he witnessed the tragic death of his parents. The biting smell of blood became a nightmare that has haunted Li Hengyuan for many years. Wandering alone at the bottom of the city, trapped by the rent and the burden of life, he struggled to survive. A sudden murder accidentally discovered his extraordinary talent for criminal investigation. After that, he met like-minded partners, and they worked hand in hand to travel through various murder cases, peeling off cocoons from the cobwebs, and digging into the dusty past along the current unsolved cases. Finally, he found out the truth about the murder of his parents and got rid of the psychological shadow that had been in his heart for more than ten years. Stepping out of the haze of the past, a group of people, with sincerity and an oath of justice, run side by side on the road to solving difficult crimes.
Concept: reasoning and suspense
