Venice 1957. Maria Callas is the most famous singer of her time, but her artistic excellence is beginning to take its toll. Her voice is in danger of failing, but neither the opera world nor her manager and husband Meneghini will grant her the rest she longs for. That's when Maria meets the charismatic shipowner Aristotle Onassis, and despite all the obstacles, they fall head over heels in love. However, their love lasts only until Onassis meets another icon - Jackie Kennedy...