There is an interesting article on the Writer’s Digest website, 11 Plot Pitfalls – And How To Rescue Your Story From Them, by Laura Whitcomb (born December 19, 1958), an American writer and teacher. Whitcomb grew up in Pasadena, California. She received a degree in English from California State University in 1993. She is best known for her book A Certain Slant of Light, which has been optioned for a film by Summit Entertainment. Whitcomb has won three Kay Snow awards and was runner-up in the Bulwer-Lytton Writing Contest.
Ms Whitcomb lists the pitfalls as follows:
1. THE PLOT ISN’T ORIGINAL ENOUGH. It may be very similar to another story, play or movie. When I write, I have an issue or two, the setting, and the characters in mind before I start. I also define the direction that the novel will take, but my novels tend not to be driven by a pre-conceived plot.
2. READERS ALWAYS KNOW EXACTLY WHAT’S GOING TO HAPPEN. This can definitely be a problem is one is working with stereotypical characters and a familiar plot. When I start a novel, I don’t know what’s going to happen. It depends on how the characters (who have to be pretty unique) react to the issue(s) in their particular setting. And often, I’ll take pains to shape the story so that the character goes down an unexpected path.
3. THE PLOT IS BORING. “Often, after thinking of wild ideas to make the story more interesting, you begin to come up with workable ones that are just as stimulating, but better suited to your book.” I agree.
4. THE PLOT IS ALL ACTION AND THE FRENZIED PACE NUMBS READERS. Ms Whitcomb makes the point that it is important to give the characters an opportunity to reflect on what has happened, consider what might happen, and express their feelings. Real life isn’t all action.
5. THE PLOT IS TOO COMPLEX. “Does your protagonist have to visit her father in the hospital twice—once to bring him flowers and talk about Mom, and then again to find he has taken a turn for the worse? Couldn’t he take a turn for the worse while she’s still there the first time? Does your villain need to have three motives for revenge? Would one or two be interesting enough?”
6. THE PLOT IS TOO SHALLOW. “Ask yourself these questions: Why am I bothering to write this story? Why does the outcome matter to the characters? How do the characters change? How did my favorite book affect me the first time I read it?”
7. SUSPENSION OF DISBELIEF IS DESTROYED. “Readers need to buy into the reality put forward by what they’re reading. You may go too far with a plot point or not far enough with preparing your audience for that plot point.” I think this is a very good point. As a writer, one constantly has to ask, ‘is this believable?’ If not, something has to change.
8. TOO MANY SUBPLOTS MAKE THE PLOT OVERLY COMPLEX. Only Agatha Christie could get away with this.
9. THE SEQUENCE IS ILLOGICAL. “If you feel the order of scenes or events in your story is off, list each scene on a separate index card and, in red ink, write a question mark on every card that doesn’t feel right where it is in the story. Shuffle the cards. I’m not kidding. Mix them up completely. Lay them out again in the order you think they might work best, giving special attention to those with red question marks.” It’s important to feel the reaction of the reader at every point in the story.
10. THE PREMISE ISN’T COMPELLING. “See where you might make the stakes higher, the characters more emotional, the setting more a part of the overall plot. Remember: The premise should make your readers curious.”
11. THE CONCLUSION IS UNSATISFYING. “Do you have to create more suspense before you give the readers what they’ve been craving? Do you need to make the answer to the mystery clearer? Does the villain need to be angrier, or perhaps show remorse?”
I would add one more point: keep the suspense coming in waves. This solves several of the problems mentioned above.