"Secret Impressionists" explores how Impressionist painters perceived the world, their approach to technique, color, light, and form. The film examines their initial rejection by critics and the public, and their rapid rise to become some of the most beloved artists globally. Through an intimate look at their paintings, the film offers a unique perspective, revealing details that enhance the viewer's understanding and appreciation of the Impressionists' work. It provides a deeper connection to the artists and their creations, enriching the experience of viewing their art.