Who's That Girl? is a captivating mystery novel written by Mhairi McFarlane. The story revolves around Edie Thompson, a young woman who finds herself in a series of hilarious and awkward situations after being caught in a compromising position with her colleague's boyfriend. As Edie tries to clear her name and navigate through the chaos, she discovers unexpected truths about herself and the people around her. With witty dialogue, relatable characters, and a healthy dose of romance, Who's That Girl? is a delightful read that will keep you hooked until the very end.