Internet celebrity chef Kenneth Ma is fired after accidentally exposing his boss in a scandal. He turns to his step-sister Alvina Kong to work as a private investigator. But Alvina has a condition - Kenneth must first persuade "Golden Tongue" Louis Yuen to join the private investigation firm. Kenneth is forced to continuously cook tasty foods for this mysteriously person. Later, he finds out that Louis was actually known as "Inspector Gourmet" back in the day. After several challenges, Louis finally agrees to join the firm.