Rosemary Jackson has traveled all the way to the frozen tundra of North Dakota territory to visit her twin sister, Rachel. It's been three long years since Rachel left Kansas with her new husband for this wild place. But Rosemary arrives to find only a grave, a grieving brother-in-law, and an underfed baby. She has no choice but to stay and see her sister's family through the long winter. Finn Tate has just buried his beloved wife, and he cannot seem to take care of himself or his infant daughter. He needs help. But he cannot stand the sight of Rosemary, who reminds him so much of Rachel, standing at his cook stove. When Rosemary settles into a neighboring homestead, Finn realizes she is far more strong-willed than he ever anticipated.