This adaptation of the bestseller written by Nicholas Searle tells the story of professional con artist Roy Courtnay (Ian McKellen), who can hardly believe his luck when he meets the wealthy widow Betty McLeish (Helen Mirren). When Betty opens her home and her life, together they will share a seemingly quiet life of a retired couple. What will surprise Roy will be to discover that he cares about her, turning what should be a scam into the most dangerous choice of his entire career.