Is a Developmental Edit Right
Developmental editing is a comprehensive review of the big-picture aspects of your story. The approach a developmental edit takes is to identify deficits in the plot and storytelling style, highlight the issues using inline comments, and provide feedback on how to approach and solve the problems.
Developmental editing is sometimes called structural editing or content editing because its focus is on the plot structure and the content itself. This kind of editing is distinct from copy editing and proofreading because it does not focus on granular aspects like punctuation and grammar, and except for providing examples to identify and show you how to fix a particular issue, the editor does not directly make changes to your manuscript.
If you’re concerned something about the plot is not working and will stop your words from resonating with your reader, a developmental edit is right for you.