Successful private investigator Harry Goodman mysteriously disappears and his 21-year-old son Tim heads to learn what happened to his father. In this study, Tim's father's former Pokémon partner Detective Pikachu helps. Pikachu is as good a detective as he is humorous and charming. Realizing that they can communicate with each other in a unique way, Tim and Pikachu join forces in an exciting adventure to solve this complex secret. People and Pokémon live together in the neon-lighted streets of the city of Ryme, and during their binary quests they encounter all kinds of Pokémon, revealing a shocking conspiracy that can destroy this peaceful life and threaten the entire Pokémon universe.