The Virtues of Solitude (2019)

In the future, a second great flood covers most of the known world. Country borders collapse and language barrier disappear. All salvageable books are taken to a deep underground vault facility for protection. Run by priests, the facility is called The Stacks. As Olivia wanders the facility she discovers that she may not be alone and that a dark part of her past may have followed her into the narrow corridors of this inescapable purgatory.

Unfortunately the movie The Virtues of Solitude is not yet available on HBO Max.