I just finished reading Peter Dunne's "Emotional Structure: Creating the Story beneath the Plot: a Guide for Screenwriters." Long title. Fabulous book.
Using a film I love--Witness--he posits that "the emotional through line, that is to say the Emotional Structure, is the first story to be developed deeply. Only then can the plot be developed to serve it."
"The plot is what happens in the film (or story). The story is what it does to the who it happens to. The who is far more important than the what. The what would be worthless without the who. But to be fair, the who wouldn't be much without the what, either.
"We can also look at this this way: The plot provides the action: the film's motion. And the story provides the reaction: the film's emotion."
"The story is the journey for truth. The plot is the road it takes to get there."
"No plot, no matter how clever, is worth anything if it doesn't ultimately connect your truth to mine."
"The plot should be thought of as the motion picture. The story should be thought of as the emotion picture."
"The most important thing you must know about your protagonist is what his journey means to you, because s/he is the personification of your film's theme."
I have known for a while that I needed to deepen the emotional story arcs in both my WIP's. This book showed how to do that. I am excited!