Based on the novel of the same title by Hideo Okuda, "NAOMI & KANAKO" tells the story that revolves around two friends who hatch a plan to kill the abusive husband of one of them.
Naomi Oda (Ryoko Hirosue) dreamed of becoming an art curator, but she currently works in a department store serving VIP clients. Although she has been successful in her career, she feels fed up with her current position. One day, Naomi visits her friend from college Kanako Hattori (Yuki Uchida) and discovers that Kanako has been a victim of domestic violence from her husband Tatsuro (Ryuta Sato). Naomi advises Kanako to divorce Tatsuro, but Kanako is afraid of his reaction and unable to free herself from the situation. Just then, Naomi happens to see a clandestine Chinese who looks exactly like Tatsuro. Naomi soon begins to contrive a perfect scheme to kill Tatsuro…