In the heart of a city, the inhabitants of a tower wake up one morning to find that their building is shrouded in an opaque fog, obstructing doors and windows - a strange dark matter that devours anything that tries to pass through it. Trapped, the residents try to organize themselves, but to ensure their survival they gradually succumb to their most primitive instincts, until they sink into horror...
A 50-year-old who is over-invested in humanitarian work is competing in the social center where she works. She will then embark her students in literacy class, with the help of a pretty foolish monitor, on the dangerous road of the code of the road.
