Isobel and Matt had been best friends for seven years when they decided to get together. Comfortable around each other and knowing everything there was to know, a relationship seemed like a natural--and exciting--step for them. But now, with the novelty wearing off, Isobel struggles to accept that her loving boyfriend has changed, only remembering years of good memories with her closest friend. When Nathan arrives on the scene and secrets from the past become exposed, Isobel's entire world is thrown upside down. Mysterious, dangerous and infuriatingly persistent, Nathan is exactly the opposite of everything that she's used to. But maybe that's just what she needs to get over Matt.