Develop an emotionally intense music composition that evokes a sense of melancholy and unease. Craft a piece that entwines deep sadness and a feeling of restlessness, compelling the listener to experience a range of conflicted emotions. Use dark and dissonant harmonies, coupled with a dynamic and unpredictable melody to create an atmosphere that is both haunting and unsettling. Capture the essence of a troubled soul searching for solace but finding none, resulting in a composition that leaves a lasting impact on the audience.