The Vow is based on the true story of Kim and Krickitt Carpenter. In the film, a car accident causes Paige to lose her memories of the last two years, including her romance and marriage to Leo. Leo tries various ways to help Paige fall in love with him again and regain her lost memories. After struggling to adapt to her new life with Leo, Paige decides to return to her family. However, she eventually starts to remember aspects of her life with Leo and realizes why she left her family and career originally. In the end, Paige chooses to rebuild her relationship with Leo.