As a child, Julia Forrester would linger in the hothouse of Wharton Park estate, where exotic flowers tended by her grandfather blossomed and faded with the seasons.

Now, recovering from a family tragedy, she once more seeks comfort at Wharton Park, newly inherited by Kit Crawford, a charismatic man with a sad story of his own. But when a years-old diary is found during renovation work, the pair turn to Julia’s grandmother to hear the truth about the love affair that turned Wharton Park’s fortunes sour …

And so Julia is plunged back in time, to the world of Olivia and Harry Crawford, a young couple torn apart by the Second World War - and whose fragile marriage is destined to affect the happiness of generations to come, including Julia’s own.