In the idyllic setting of a seaside holiday in 1800s England, Jamie experiences his first infatuation when he meets Ella Parker, a mysterious girl with a troubled past. As the two rehearse Romeo and Juliet, they decide to sneak out for a midnight swim. But their plans are abruptly halted by a shocking revelation, and Ella is soon gone. Left with a broken heart, Jamie searches for her ... and himself. With unexpected twists and turns, Hearts by the Sea is a story of first love and self-discovery.