Their Finest is a British comedy drama film weaved around the events surrounding the Second World War. The film will tell the story about a woman, who is shown as happily married and given the job to work on a screenplay for a propaganda film. However, she takes up the job mostly because her husband, who happens to be a painter, is in the middle of a financial disaster. And when the government recognizes her writing skills and offers her a job as a short story writer, films on which will be showcased in the theatres, she takes the offer gladly. She is made to work alongside a writer of much higher talent and social stature than hers. It is serious project and the stakes are way too high. By a strike of fate, she finds herself falling in love with the man. The story moves forward asking many questions and finally ends up in a satisfying finale. The film dwells in the themes of love, passion, heartbreaks and loneliness.