Billy and Angella are lovers. Billy introduces his friend, Jack, to Angella, and Angella falls in love with Jack and neglects Billy. To get even, Billy poses as a dashing widow at Jack's boarding house. Jack flirts with the fake widow and takes strolls in the park with her. Then Billy, the fake widow, sends a note to Angella, which reads: "Jack is deceiving you. If you want to prove it, conceal yourself behind the big elm in the park immediately. A FRIEND." Angella receives the note and goes to the park to spy on Jack. She gets behind the big elm and sees Jack and the widow on the bench making love. Jack tries to kiss the widow. Angella comes forward, denounces him, and returns his ring. The fake widow gets tickled and starts snickering, which enrages Angella, and she starts a hair-pulling match with the widow. After she has mussed the widow up good, she accidentally pulls off the widow's wig, discovers Billy; then she regrets the way she has treated Billy, and she hints that Billy can take her back again, which be does.