Gao Han, a detective in the capital, was falsely accused of corruption and bribery due to a well-designed conspiracy. He was reduced from a police legend to a prisoner overnight. After he was released from prison, he took his four-year-old daughter Gao Niannian and lived in seclusion in a small town in the south of the Yangtze River, making a living by opening a small noodle shop. However, he did not know that the daughter he adopted was the legendary "Eye of Truth" - able to see through all lies and disguises.
Gao Niannian's superpower forced Gao Han to get involved in a series of bizarre cases again. From neighborhood disputes to unsolved corpse cases, from campus bullying to transnational crimes, the father and daughter teamed up to use their extraordinary powers of observation and reasoning to uncover the truth again and again. But Gao Han soon discovered that these seemingly independent cases all pointed to the same mysterious organization - a conspiracy network controlled by his former fellow student Gao Jingming.
Gao Jingming, a criminal genius with a superior IQ, was the one who set up the scheme to ruin Gao Han's reputation. Now, he is plotting a shocking case that could subvert the entire country's financial system. And Gao Han's daughter seems to be inextricably linked to this organization...
When a lonely journey meets a born detective, when a broken life meets a warm reunion, Gao Han not only wants to protect his daughter, but also uncovers the mystery of his life experience and the ultimate truth hidden in the darkness.
