Energetic and ambitious, Kate stubbornly builds an ideal life, but the birth of her second child with serious developmental disabilities ruins all plans.… After suffering for five years, devastated, internally broken, Kate realizes that she no longer has the strength, and ... runs away from her family overseas, to Los Angeles. Her estranged husband Andrew continues to take care of his disabled daughter and troubled son, relying on the help of Kate's closest friend. Fifteen years pass, and Andrew publishes a book about the incredible story of his daughter, who, despite everything, has learned to communicate with her family, and Kate's new husband, a Hollywood producer, decides to make a film based on this book — which means that the runaway mother will have to face her past again.