Li Dai, a grassroots criminal policeman, is a leading criminal investigator who rushes into crime scenes to chase the murderer during the day, and is a secretive veteran DOTA player at night. In the early morning, a murder case broke out in an old alley. Bloodstains, footprints, anonymous threats, and clues from Internet cafes were intertwined. He uses the tactical thinking in the game to solve crimes. He squats down like controlling the field of vision, investigates like taking away positions, and pursues the murderer like a team fight. Fireworks hide evil in the world, and there is no blind spot under the police badge. This time, he will tear apart the fog with his own hands and bring the murderer to justice.
