In the long history of the Republic, evil has quietly grown like hidden traces. From 1960 to 2025, major, important, and murder cases emerged one after another, challenging the majesty of the law and the wisdom of criminal investigators. The young and promising criminal police captain Lin Yu has become the nemesis of crime with his keen insight, rich criminal investigation experience and fearless courage. He led the criminal investigation team to dig out the cocoons in every case and not let go of any clues. Faced with complex cases, cunning criminals and numerous difficulties, Lin Yu always adhered to his belief in justice and used his blood and wisdom to make the truth known to the world, leaving criminals with nowhere to hide, and composing a series of heart-stirring criminal investigation legends.
