Not Worth Killing tells the true story of the decades-long friendship between Sister Lillian Oliver, a member of the Immaculate Heart Community, and Mitchell Rutledge, a man serving life without parole in an Alabama prison. Their unlikely bond began in 1983 when Sister Lillian read about Mitchell in Time magazine and decided to reach out. What started as letters became a life-changing relationship that bridged prison walls and reshaped them both. The film explores redemption, faith, and the quiet power of showing up for someone who believes they are beyond saving—revealing how grace can survive in the hardest places, and how one person's belief in another can become a kind of salvation.