Alice Chesterton is described as a "Baby Vamp" by the social set and engaged to boring Tom Carey. She flirts with many of the male guests idling at the Ives' Long Island house party, then encourages Terence O'Keefe, a playboy polo player from Ireland, to rendezvous with her in the city; they are seen together at the "Midnight Frolic". Because of this, Mrs. Ives convinces Alice's newly-arrived sister Betty to look after Alice.
A villain, competing with his rival's race car, kidnaps the rival before the race. Mabel decides to take the wheel in his place.
Charlie is hanging around in the park, finding problems with a jealous suitor, a man who thinks that Charlie has robbed him a watch, a policeman and even a little boy, all because our friend can't stop snooping.
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.
To show his girl how brave he is, Pug challenges the champion to a fight. Charlie referees, trying to avoid contact with the two monsters.
Mabel goes home after being humiliated by a masher whom her husband won't fight. The husband goes off to a bar and gets drunk.
Charlie is in charge of stage props and has trouble with actors' luggage and conflicts over who gets the star's dressing room. Once all that is resolved the next issue is getting everyone on stage with the correct backdrop.
A painter turned tramp (Chaplin), devastated by losing the woman he was courting as a wealthy man, finds himself drunk and getting drunker by the minute with some sailors at a bar until he's literally falling down. He keeps futilely trying to draw the woman's picture on the floor with a piece of chalk until he finally passes out cold (or perhaps dies, as in the poem) at the end of the film.
Charlie begins to woo a woman on a bench, only to have her seaman boyfriend object. After a brick fight between the two men that eventually involves two police officers, all five people end up in the local pond to cool off.
Two drunks fight with their wives and then go out and get even drunker.
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.
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.
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.
Set mostly in the Stone Age, a prehistoric king, with a harem of wives, rules a beach. Charlie arrives and falls for the king's favorite wife. In the end, it turns out to have been a dream; Charlie was asleep in the park.
When one of the actors on a movie set doesn't show up, Charlie gets his chance to be on camera and replaces the actor. While waiting, he plays in a dice game and gets on many people's nerves. When he finally gets to act, he ruins his scene, accidentally destroys the set, and tears the skirt of the star of the movie.
After a visit to a pub, Charlie and Ben cause a ruckus at a posh restaurant. Charlie later finds himself in a compromising position at a hotel with the head waiter's wife.
A tramp steals a girl's handbag, but when he tries to pick Charlie's pocket loses his cigarettes and matches. He rescues a hot dog man from a thug, but takes a few with his walking stick. When the thief tries to take some of Charlie's sausages, Charlie gets the handbag. The handbag makes its way from person to person to its owner, who is angry with her boyfriend who didn't protect her in the first place. The boyfriend decides to throw himself in the lake in despair, so Charlie helps him out.
It is windy at a bathing resort. After fighting with one of the two husbands, Charlie approaches Edna while the two husbands themselves fight over ice cream. Driven away by her husband, Charlie turns to the other's wife.
Charlie and his boss have difficulties just getting to the house they are going to wallpaper. The householder is angry because he can't get breakfast and his wife is screaming at the maid as they arrive. The kitchen gas stove explodes, and Charlie offers to fix it. The wife's secret lover arrives and is passed off as the workers' supervisor, but the husband doesn't buy this and fires shots. The stove explodes violently, destroying the house.
Mother, father and daughter go to the park. The women doze off on a bench while the father plays a hide-and-seek game with a girl, blindfolded. Charlie leads him into a lake. Both dozing ladies on the bench fall for Charlie and invite him for dinner. The father returns home with a friend. Charlie rushes upstairs and dresses like a woman, shaving his mustache. Both men fall for Charlie.