Killing Mary Sue (2025) is a Action, Comedy, Thriller film that follows a corrupt senator arranges for the murder of his biggest liability, his erratic burnout stepdaughter, only for her to unwittingly discover her natural talent as an untouchable killer. Currently, you can watch Killing Mary Sue on Amazon Prime Video, Amazon Prime Video with Ads, Amazon Video, Apple TV Store. Streaming availability may vary by country and platform over time. It has a user rating of 6.0 out of 10 from 20 votes. Fans of action movies may also want to explore similar titles below.