This book is extremely sad, it's a fictionalised novel about the life of a real woman who. Survived Auschwitz as a young woman, but while there is raped and works for the Nazi's to keep herself alive, and then once liberated is sentenced to 10 years in a Russian Gulag for "sleeping with the enemy". 
It was tough to get through and I had to stop and come back several times, it's hardly believable.