I empathize with these two innocent and painful characters.
Film is a comprehensive art. As a viewer, I am drawn to works that are excellent overall in terms of script, acting, visuals, music, etc. How film music functions within that balance is important. This film is fascinating because of the two pure and eccentric characters.
Many of the film's striking visuals, including the scene where they dance under a firework display in full bloom, are captivating. However, it's painful to see how their purity leads them to self-harm. Watching it multiple times requires stamina. For similar reasons, I hesitate to watch "Betty Blue" multiple times.

On the other hand, "Marathon Man" is linked to my own experience. When I saw the scene where a dentist tortures the protagonist's teeth, it brought back memories of when I went to a sadistic dentist in New York, the same place the movie is set (laughs). I can't bear to rewatch it.