Why does the main character want to relive her high school days?
– Her life must have been downhill after she left high school. Maybe use a few words in your logline to convey this: A recently divorced ex-trophy wife desperate to relive her high school days…
A 15 year waitress who just can’t take anymore of her dead-end job decides to go back to the time when she was happiest: high school.

In what capacity does she come back to high school?
– Does she come back as a teacher, a coach, a volunteer coach, a student trying to complete high school/GED requirements? Does she just lurk the halls and sit in on classes so that she can have that high school experience. If so, what triggers this? What is the inciting incident?

Why does she help a random student get revenge on a clique that wronged her?
– Does the MC recognize a part of herself inside that student?
– Is the MC desperate for friendship?

Example logline:

After 15 years waitressing in a dead-end job, a high school drop-out has had enough and decides to reinroll at the local high school to earn a diploma and relive her glory days. Desperate for friendship and high school drama, she becomes involved in helping a classmate get revenge on a clique of popular girls.