Four miscreants get revenge on the police chief by planting bombs in his house.
On his way to a restaurant, Ambrose, a happily married man, obliges to mail a letter for a woman in the apartment lobby. Unbeknownst to him, the letter is about a rendezvous with her own lover at their "trysting place". Elsewhere, after some domestic frustration, Charlie runs an errand to buy a baby bottle before stopping at the same restaurant. After a confrontation there, they both inadvertently leave with each other's coats. Later, their wives independently discover what appears to be incriminating evidence of extramarital affairs from the pockets of the swapped garments. It all comes to a head when all four of them find themselves at the "trysting place" in the park.
Mabel and her beau go to an auto race and are joined by Charlie and his friend. As Charlie's friend is attempting to enter the raceway through a hole, the friend gets stuck and a policeman shows up.
Mabel tries to sell hot dogs at a car race, but isn't doing a very good job at it. She sets down the box of hot dogs and leaves them for a moment. Charlie finds them and gives them away to the hungry spectators at the track as Mabel frantically tries to find her lost box of hot dogs. Mabel finds out that Charlie has stolen them and sends the police after him. Chaos ensues.
When a married couple become separated in the park, a tramp sits with the lady and is beat up when her husband rejoins her. He takes a room in their hotel, and chaos ensues.
A villain, competing with his rival's race car, kidnaps the rival before the race. Mabel decides to take the wheel in his place.
A fun-loving little boy's magic lantern show exposes some indiscreet moments between his landlady mother and her star boarder.
Pierre and Jacques are working as waiters at a restaurant where the cooks go on strike. When the two are forced to work as bakers, the striking cooks put dynamite in the dough, with explosive results.
Charlie and his wife are in the park when he encounters Ambrose and his wife. Each man is attracted to and shows unwanted attention to the other man's wife. A policeman becomes involved.
Charlie and his partner are to deliver a piano to 666 Prospect St. and repossess one from 999 Prospect St.
The hero, a janitor played by Chaplin, is fired from work for accidentally knocking his bucket of water out the window and onto his boss the chief banker (Tandy). Meanwhile, one of the junior managers (Dillon) is being threatened with exposure by his bookie for gambling debts unpaid. Thus the manager decides to steal from the company.
Mabel and her mother visit the park. She sees her boyfriend, Roscoe, and asks him to join them. After the lovers manage slip away by themselves, Mabel�s mother is subsequently robbed.
