The Knockout

A pair of hoboes attempt to extort money from a promoter by impersonating a couple of prize boxers. They set up one of the real boxers to throw the match and are then chased away. Chaplin makes a brief appearance as the officious referee in a boxing match between the real pugilists Fatty Arbuckle and Edgar Kennedy. Charlie gets knocked about as a set-up is suspected and a rooftop chase follows, much complicated by the arrival of the Keystone cops. (official distributor synopsis)