Kill Boksoon is a South Korean action-comedy film directed by Kwon Oh-seung. The movie revolves around the life of Boksoon, a notorious assassin who is considered the best in the business. However, she also has a secret life as a doting single mother to her teenage daughter, Dongyi.
Boksoon's life takes an unexpected turn when her daughter gets into trouble at school and is suspended. She decides to take a break from her killing assignments to be there for her daughter, but balancing parenthood and work proves to be challenging. As she tries to navigate her personal and professional life, she also finds herself becoming closer to her daughter's handsome teacher.
Things take a dramatic turn when Boksoon's latest target turns out to be her daughter's school principal. She must now choose between completing the job or protecting her daughter and her good name. The movie features thrilling action sequences and heartfelt moments as Boksoon learns that being a mother is the toughest job of all.