Two women find themselves pushed to the edge, confronted with a harsh reality that forces them to consider murder as their only way out. Eun Soo (Chun Seo-ni), a luxury goods sales associate at a department store, watches her friend Hee Soo (Lee Yoo-mi) — once a promising children's book author — suffer through a living hell with her abusive husband, Jin Pyo (Jang Seung-jo).
One day, Eun Soo decides to save her friend and devises a plan to kill Jin Pyo. Jin So Baek (Lee Moo-saeng), the CEO of Jingang, discovers their plan and chooses to help them.
Based on Hideo Okuda’s novel Naomi and Kanako.