对格蕾塔•哈恩夫人来说，搬离慕尼黑的漂亮公寓并不像她担心的那样令人心痛。他们的新家甚至比他们离开的那个家更漂亮，在布痕瓦尔德的生活似乎快乐祥和。他们家被一片森林包围，在森林的那边，有一个隐约可见的囚犯劳动营。哈恩夫人的丈夫，党卫军军士长迪特里希-哈恩（Dietrich Hahn）被任命为该营的管理员。

哈恩夫人患病后，与布痕瓦尔德的一名囚犯莱纳德•韦伯医生成为了朋友。这段友谊出人意料，令人动容，让她对附近发生的一切的天真想法受到了挑战。十年前，韦伯博士发明了一种机器，当时有人相信，其微妙的共鸣也许能治愈癌症。但它真的有用吗？无论如何，它或许还能拯救一条生命。

A novel of devastating beauty set in Buchenwald during the Second World War.

Moving away from their lovely apartment in Munich isn’t nearly as wrenching an experience for Frau Greta Hahn as she had feared. Their new home is even lovelier than the one they left behind and life in Buchenwald would appear to be idyllic. Lying just beyond the forest that surrounds them is the looming presence of a work camp. Frau Hahn’s husband, SS Sturmbannführer Dietrich Hahn, has been assigned as the camp’s administrator.

When Frau Hahn’s poor health leads her into an unlikely and poignant friendship with one of Buchenwald’s prisoners, Dr Lenard Weber, her naïve ignorance about what is going on so nearby is challenged. A decade earlier, Dr Weber had invented a machine believed at the time that its subtle resonances might cure cancer. But does it really work? One way or another, it might yet save a life.