Pet doctor Lin Fan accidentally gained the superpower to understand the voices of animals. He wanted to make a stable living by running a clinic, but due to a misunderstanding, he met the policewoman Luo Xuan. Relying on the key clues provided by animals, he successively solved cat abuse suspicions, major drug cases, transnational poisonings, murders of wealthy people and other shocking cases, and turned from an ordinary veterinarian into a special detective of the police station. In one thrilling exploration after another, Lin Fan not only exposed the dangers of human nature, but also unexpectedly learned that he had a biological daughter. In the end, with his cute pet and the power of justice, Lin Fan protected the peace of the city and gained warmth and love.
