La Coppa D'oro by Henry James

Maggie Verver, daughter of a wealthy art collector, marries the charming Prince Amerigo while an intimate, complicated history with the worldly Charlotte Stant quietly entangles their lives; what begins as a seemingly perfect alliance becomes a tense, psychological drama of secrets, suspected betrayals, social artifice and moral choice. The story dwells on manners, perception and conscience, using the image of a precious but flawed golden cup to show how beauty and possession can hide fractures that force characters to decide between exposing truth or preserving appearances.