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 Chaplin
as Clarence, the Husband

Mabel Normand
as Mabel, The Wife

Mack Swain
as Ambrose

Phyllis Allen
as Ambrose's Wife

Helen Carruthers
as Clarice (uncredited)

Glen Cavender
as Cook / Park Police Officer (uncredited)

Nick Cogley
as Bearded Diner (uncredited)

Ted Edwards
as Diner with White Shoes (uncredited)

Vivian Edwards
as Woman Outside Restaurant (uncredited)

Edwin Frazee
as Thrown Pie Recipient (uncredited)