Presents the life of the artist, who was inspired as a child by a book of anatomy given to him by his mother after being injured in a car crash and who went on to become a celebrity in the art world before his early death at twenty-eight.

When twelve-year-old Hugo, an orphan living and repairing clocks within the walls of a Paris train station in 1931, meets a mysterious toyseller and his goddaughter, his undercover life and his biggest secret are jeopardized.