Marguerite : a novel / Marina Kemp.

Enhanced descriptions from Syndetics:

In this haunting novel, a young nurse forms an unlikely connection with the elderly man she cares for, and finds herself confronting the guilt she carries from her past

Marguerite Demers is twenty-five when she leaves Paris for the sleepy southern village of Saint Sulpice to take up a job as a live-in nurse. Her charge is Jerome Lanvier--once one of the most powerful men in the village, now dying alone in his large and secluded house surrounded by rambling neglected gardens. Manipulative and tyrannical, Jerome has scared away all of his previous caretakers.

It's not long before the villagers have formed opinions of Marguerite. Brigitte Brochon, pillar of the community and local busybody, finds her arrogant and mysterious and is desperate to find a reason to have her fired. Glamorous outsider Suki Lacourse sees Marguerite as an ally in a sea of small-minded provincialism. Local farmer Henri Brochon, husband of Brigitte, feels sorry for her and wants to protect her from the villagers' intrusive gossip and speculation (but Henri has a secret of his own that would scandalize his neighbors, if only they knew). The sudden arrival of Jerome's three sons will upend the rhythm of their days, changing their lives forever.

Set among the lush fields and olive groves of southern France, and written in clear prose of luminous beauty, Marguerite is an unforgettable novel that traces the ways in which guilt can be transformed, and how people can unexpectedly find a sense of redemption.