Fatal Defense (2017) is a Thriller, Drama, TV Movie film that follows a single mother signs up for self-defense classes from a handsome instructor. But he develops a frightening obsession with her and orchestrates an increasing deadly array of "tests" to see if she has truly learned from his lessons. Currently, you can watch Fatal Defense on Amazon Video. Streaming availability may vary by country and platform over time. It has a user rating of 6.3 out of 10 from 18 votes. Fans of thriller movies may also want to explore similar titles below.