Orphaned and alone except for an uncle, Hugo Cabret lives in the walls of a train station in 1930s Paris. Hugo's job is to oil and maintain the station's clocks, but to him, his more important task is to protect a broken automaton and notebook left to him by his late father. Accompanied by the goddaughter of an embittered toy merchant, Hugo embarks on a quest to solve the mystery of the automaton and find a place he can call home.

El Mono relojero is a 1938 Argentine animated short film directed by Quirino Cristiani. It is the only film from this director that exists up to this day, since all his other productions (including the first two animated feature films, El Apóstol (1917) and Sin dejar rastros (1918), as well as the first animated film with sound, Peludópolis (1931)) were lost in a series of fires at the facilities where the negatives and copies were stored.