One Day (2024) is a romantic drama series based on the bestselling novel “One Day” by David Nicholls. The series follows Emma Morley and Dexter Mayhew, two very different people, who met on July 15, 1988 – the night of their graduation. Each episode revisits them on the same day (July 15) over the next 20 years, and shows how their relationship grows – through love, friendship, heartbreak, and missed possibilities.