In America, in the rich family estate of Saddle Meadows, the Glendinning family leads a luxurious and carefree existence – Mrs. Glendinning rotates in the upper circles of local society; her son, Pierre, an athlete and a talented young writer who gained his first fame, is going to marry the lovely Lucy, whom he seems to have a crush on. But an accidental meeting with the mysterious beauty Isabel threatens to destroy Pierre's entire happy life, as she opens the veil of gloomy family secret.