But in this particular show a couple of kids were kidnapped and their kidnapper died while they were still locked in. The kids banged on the doors and the neighbors pretended not to hear. Eventually the cops broke in (probably because the kidnapper didn't show up to work) and the people pretended they never heard anything. Their real parents wouldn't accept their kidnapped fucking children back into their homes.
And it's not just this show, many shows treat the average jap as an asshole.