Orphan, clock keeper, and thief, twelve-year-old Hugo lives in the walls of a busy Paris train station, where his survival depends on secrets and anonymity. But when his world suddenly interlocks with an eccentric girl and the owner of a small toy booth in the train station, Hugo's undercover life, and his most precious secret, are put in jeopardy. A cryptic drawing, a treasured notebook, a stolen key, a mechanical man, and a hidden message all come...

Tells the tale of an orphan boy living a secret life in the walls of a Paris train station. When Hugo encounters a broken machine, an eccentric girl, and the cold, reserved man who runs the toy shop, he is caught up in a magical, mysterious adventure that could put all of his secrets in jeopardy.