Forty-year-old auxiliary police officer Jiang Yuan traveled to a parallel world and became an old auxiliary police officer who was about to receive his pension. On his first day at work, he activated the "Crime Buster" system and obtained a [Crime Diary] that could peek into the criminal's heart and evidence. From then on, this old comrade, who was regarded by his colleagues as "living around waiting for retirement", began a cheating career of chasing murders - human traffickers, fraudsters, fugitive felons... There was nothing to hide from him. When the leader had a headache that he didn't understand the world, but had to make an exception for him for his repeated outstanding achievements, Jiang Yuan just wanted to say: Before retiring, I want to be a real crime killer!
Is 40 a young person?