Sixteen-year-old Jiang Jin died along with his parents in a strange home fire, but he was mysteriously "resurrected" in a dilapidated rental house. An old mobile phone with a cracked screen and a forced installation of the "Yinsi Patroller" application that cannot be uninstalled have become his only evidence of wandering between life and death. As an "intern patrolman" who has reached the end of his life, he must rely on the ghost-hunting tools and skills acquired in the game to complete dangerous tasks and accumulate moral virtue in order to maintain his own existence. As he continues to upgrade in the game, his abilities such as the soul hook and the ghost whip begin to materialize into reality. He can even regenerate his limbs in exchange for life span. Jiang Jin uses his extraordinary power to change his real life that is on the verge of despair, while pursuing the truth behind his parents' death. However, when he went through all the hardships and finally came close to the final answer, the cold task prompts on the game screen pushed him into an extremely cruel abyss of choice...
