I’ll need to think more on my heroine. Perhaps she’s become complacent because it’s been drilled into her since she was young. Maybe her arc is realizing that what she’s believed is not true and she can have independence if she wants it and her struggle will be letting go of the belief that’s held her back.
I hadn’t considered that mysteries and detective stories don’t usually have a character arc. I will have to search out some movies to study. It seems I’ve been watching mainly series lately.