Sophia, a bastard swapped at birth by her scheming mother, grows up eclipsed by her sister Laura, who steals every scrap of love and privilege. Forced into a cold marriage with Oscar, she endures a year of sexless neglect—her stifled desire curdling into hysteria. Then enters Brant, the hospital's enigmatic doctor. Their charged entanglement peels back decades of lies, exposing a birth secret that could shatter her world.