A historical chronicle set amid the violent politics of medieval Japan follows the Hojo clan's ascendance and ruin through intertwined personal and political tragedies. A gentle temple-bred woman is married into a brutal samurai household and struggles with her husband's cruelty and the coarse world of retainers. As vendettas, executions, court intrigues, and a mysterious curse called upon Koshiu unfold, provincial daimios, the mikado, and religious figures maneuver for power, and destiny brings ruin to tyrants and suffering to innocents. Themes include the corrosive effects of unchecked power, conflicting codes of honor and compassion, and the interplay of fate, vengeance, and Buddhist resignation.