Sherlock Jr.

A movie projectionist and janitor (Buster Keaton) who is studying to become a detective is in love with a beautiful girl (Kathryn McGuire). On a date he presents her with chocolates and an engagement ring. However, there is another man who's also interested in his girl (Ward Crane). One day he is accused of stealing his girlfriend's father's watch. He falls asleep on the job and dreams that he is a Sherlock Holmes-type detective, solving the case of who stole a valuable pearl necklace. (official distributor synopsis)