Marriage isn't high on 39-year-old Emma King's list of priorities; after all, she's been there and done it once. So there are no big surprises when, yet again, she turns down her long-term partner Harry's marriage proposal. They're a solid, secure couple - a piece of paper won't make any difference. That is until she accidentally stumbles across a flirtatious text message from one of his female colleagues on his phone. Overcome with suspicion and an impending fear of losing Harry, Emma goes on a quest to get to the bottom of his secret affair with the help of her ninety-three-year-old neighbour, Alistair, her best friend Ola, and Harry's sister-in-law's psychic app, The Magic Touch.