Dan and Sam are a golden couple: happily married, owners of a popular London restaurant and looking forward to spending the rest of their lives together - until a tragedy changes everything. When Sam dies in his arms after an accident, Dan cannot imagine life without her. But love, it seems, is stronger than death and Dan is granted a reprieve - Sam can return to him for one night of the year, every year, until he falls in love again. And though Dan knows that no one could ever take Sam's place in his heart, he soon faces an impossible choice...