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.
A villain, competing with his rival's race car, kidnaps the rival before the race. Mabel decides to take the wheel in his place.
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.
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.