Reiji doesn't solve crimes with art as a gimmick, he reads forgeries the way a detective reads crime scenes, and every fake tells a story about who made it and why. The gallery itself becomes a trap where he orchestrates cons against criminals using their own greed, turning the black market into his chess board. You're watching a man who chose the underworld over prestige use everything he learned at the Met as a weapon, and that choice matters every episode.

Fujita Reiji runs Gallery Fake, an art gallery that openly shows only reproductions of famous works. He was once a curator at the Metropolitan Museum of Art in New York, so skilled that he was called 'professor', until conspiracies against him cost him the post. Back in Japan, he grows rich by trading stolen pieces on the black market. Sarah, a young descendant of an Arab royal family, becomes his assistant after he recovers a painting stolen from her home. The mystery series is adapted from Hosono Fujihiko's seinen manga.