A haunting scene in Kon Ichikawa's 1955 film Kokoro shows two men treading water in the sea. One, the older man, has swum out by himself. From the shore, the other, a young man, sees him – waiting, possibly floundering, apparently beyond earshot… The young man sees him and swims out. We see the older man's head bobbing above the surface, and the water dense and opaque beneath. When they are close, the two men look into each other's eyes, but between them there is a distance, an absence that is not going to be filled.