The man she helped on the train now wants her to pretend to be his fiancée to protect his nephew! When nanny Ainslie accidentally witnesses her employer’s wife having an affair, she gets fired for a crime she never committed. Hopeless and jobless, Ainslie finds herself lost in London’s train traffic, where she meets a handsome man holding an upset baby. Seeing the man struggling to comfort the baby, Ainslie offers to help him. The man turns out to be Elijah Vanaldi, a successful real estate mogul and an Italian millionaire. The baby, Elijah’s nephew, recently lost his parents and Elijah is trying to protect him from his brother-in-law’s notorious family. Which is why he needs to convince the caseworker that his nephew will be happiest living with him and Ainslie…who he says is his fiancée!