Soon-jae is shocked when he is forced to leave a drama he had been working on and even gets criticized by the public due to a misunderstanding that occurs during the process. In total despair, Soon-jae escapes to his house in Geoje-do. There, he meets Sophie the dog, and his life begins to change. Sophie was a police dog who had collected evidence for three years but retired due to an injury. One day, Sophie encounters Soon-jae, who can communicate with him. Sophie delivers clues to Soon-jae regarding the various mysteries that occur in the village. Soon-jae, who believed he was now useless, takes on a new challenge with Sophie.
