A woman's journey into an imaginary underworld city. The birth of her daughter into an increasingly perilous world has unsettled everything in Beatrice's life. Her growing unease prompts Beatrice to undertake a journey - an investigation into human nature, a confrontation with the fears of our time, and a search for clues that will ultimately give her an answer to the central riddle of the film: why has humankind set the stage for its own extinction?