Lottie Conway has spent her life in the shadow of a scandal that has ripped her family apart. Now expecting her own child, she must untangle the legacy of her family’s tarnished name and uncover what really happened in those pre-war summers. Returning to beautiful Wyke House, Lottie confronts the only person left who knows the truth: her grandmother, Dinah.

Dinah Conway and her beloved William are on a blissful honeymoon when they bump into celebrated MP Winston Churchill. Unexpectedly embroiled in the febrile politics of 1930s Munich they find themselves deep in a perilous world of secrets and spying. Then, in the heat of a German summer, a devastating betrayal occurs - one that ends in a secret buried for seventy years . . .