Woman in the Pillory by Brigitte Reimann

Kathrin - five years into a disenchanting marriage - struggles to work the farm with her sister-in-law while her husband Heinrich is away fighting for the Third Reich. To help them with the harvest, Heinrich arranges for Alexei, a Russian prisoner of war, to labour in the fields. Though initially suspicious of this watchful stranger, Kathrin is soon drawn to Alexei, with ruinous consequences.