When Qin Feng was investigating a case involving a second-generation rich man, he was humiliated as a mental illness because he insisted on having a "third hand." At the critical moment, the system awakened, and he saw the truth behind the murderer's use of ghosts to execute people. Qin Feng took in the evil ghost and doubled the fear back to the murderer. Forcibly absorbed by the Special Affairs Bureau due to his abilities, Qin Feng used the system to continuously contain urban legend-level weirdness (senior sister in red, headless passenger, deep sea monster), and gradually discovered that all the weirdness pointed to a huge organization trying to summon the "evil god" to resurrect, and his sister's key to all this three years ago was the key.
