It’s July 15, 1988 and graduation night for Emma Morley and Dexter Mayhew. Although uni’s coming to an end, the two students speak for the very first time that day and go their separate ways the following morning. Where will they be on this one ordinary day the next year, and the year after that, and every year that follows? Each episode finds Dex and Em one year older on this one particular date as they grow and change, move together and apart, and experience joy and heartbreak. (https://www.netflix.com/tudum/articles/one-day-release-date)