Gemma has had a stressful week. Her big work presentation was a flop, and now her flight home has been delayed. All she wants to do is crawl into bed. But when she gets to her front door, her key won't fit the lock. Jake is kindness personified, single, working for a local charity. So when there's a knock at his door, and a confused young woman starts babbling about how she lives in his house, he decides to try and help her. One of them is lying. But who?