I was walking down the street, patrolling the area at 10 o'clock when I approached a mysterious man.
He said, "It's alright officer, I'm waiting for a friend. Twenty years ago we agreed to meet here tonight. It sounds strange to you, doesn't it?" This sets off the rest of the story.
The plot develops as the man continues telling his story about parting ways with his best friend, Jimmy Wells, 20 years prior. They had parted because the mysterious man moved out west, while the other stayed in New York. They agreed to meet in the same spot 20 years later, which is now. The police officer left and the man, Bob, was approached by his friend. They started to catch up, just making small talk.
Suddenly, the mood drastically changes as Bob announces, "You're not Jimmy Wells. Twenty years is a long time, but not long enough to change the shape of a man's nose from a roman to a pug."
The man explains how all of the cops were looking for Bob, since he's on the run from the law. Before Bob could say anything, he says that there is something he was asked to give Bob, a letter.
Bob: I was at the place on time. I saw the face of the man wanted by Chicago cops. I didn't want to arrest you myself. So I went and got another cop to do the job. JIMMY
Although it's kind of a twist ending, this piece of information brings the story to a close as the author intends it to. The main conflict of the story is character vs society. In the end, it is revealed that Bob turned bad over time while he was out west. This caused the police to go after him. The theme of the poem is to stay true to yourself and always do the right thing.