book set in a bunker

I have a sudden craving for a book set in a bunker in some type of post apocalyptic scenario.

This may be too specific of a request but I’m really looking for a story that’s sort of like “we were so focused on the threat outside we noticed the threat inside too late” something where characters are preoccupied with other things they don’t realize that sort of growing dread or sense that things are off + a sense of paranoia. But set in a bunker

I guess it doesn’t have to be a literal bunker but those are the vibes I’m looking for, if such a book exists I’m really itching to read it!!