There should be one main plot. In a longer story or novel, you can have one or two sub-plots that run along during the story, too.
It can have as many plots as you want, but the more you have, the more complicated and harder to read the story will be!
A traditional cemetery holds about 1250 plots per acre. If two people are buried per plot, the potential is 2500 per acre
About 4,000 in most cemeteries
plots
Many of Shakespeare's plots are recycled: Hamlet is retold in The Lion King. Disney's Pocahontas is a Romeo and Juliet story, as is the opera Aida and the musical West Side Story.
The plot and sub-plots are what "happens" in a story.
Plots develop around conflict and tension because that's what makes an interesting story.
The book had the most forgettable plot because it was similar to many other story plots, there was nothing special about it.
Shakespeare was a writer, not a story. People do not have plots.
Any parallel plots that are carried through the story can be said to be dual themes.
The plot is simply what happens in the story. Just read it and you'll see the plot.
I think there are Seven Basic Plots