The Ground She Walks On

A story based on actual events that centers on two former college rivals whose animosity intensifies after one of them steals the other's project and book rough draft and passes it off as her own, leading to a longstanding enmity. The entitled rival, a popular and disdainful socialite known for mistreating her friends, continually spies on her adversary, harboring resentment and jealousy over the years.
Eventually, her duplicity is is unveiled after a former friend from her clique defects and exposes her actions, resulting in widespread ostracization and condemnation.