The difference between denouement and conclusion is that a denouement is the final unraveling of the plot of a story, while a conclusion is the end of the story.
A denouement is usually characterized by a sense of resolution, resolution of plot threads, and some level of closure. A conclusion, on the other hand, is simply the end of the story. It may or may not offer resolution or closure.
In some cases, a story may have both a denouement and a conclusion. For example, a story may have a conclusion that leaves some plot threads unresolved, but which also offers a denouement that wraps up the story.
