There have been many cases of mysterious deaths of pets in the city. The deaths are tragic. What is even more bizarre is that every owner who loses his beloved pet will encounter misfortune soon after. Pet undertaker Lin Wan has the ability to see the remnant souls of pets and understand their last words. She learned about the existence of "demon" for the first time from the remnant soul of a cat that died tragically. In order to find out the truth and protect more pets and owners, she found the gentle and reliable animal doctor Gu Yanchen. The two work hand in hand, listening to the screams of the pet's remnant soul and healing the heartbroken owner, while following clues to track down the real culprit. In fighting side by side again and again, two kind hearts gradually get closer, and love quietly grows in the process of healing and chasing the murderer, and jointly fight against the perverted demon hiding in the shadow of the city.
