A romantic comedy in which Sam and Mollie are almost three years old when they become a couple, but although it should be a moment of celebration, shortly before this moment the two find themselves in a deadlock and they will have to decide what they will do with their lives, if it is worthwhile to continue the relationship started three years ago or it is time to end the love story. All this tumult that the two of them passes takes place within one day, and in order to understand the reasons for this situation are presented pictures from the past of the two.