Eve Polastri has grown tired of sitting behind a desk with the MI5 and often daydreams about a more thrilling life. What she doesn’t realize is that she is about to get her wish. After the assassination of a Russian politician, Eve must lead a new hands-on task force to apprehend the killer before a key witness is murdered. Villanella is a highly-skilled yet unstable female assassin who is equally set on carrying out her mission. The two brilliant women collide, as their lives turn into a deadly game of cat and mouse. Who will be the victor?