Jonah - Uma Crosta de Ferro

It is winter and Jonah, a Brazilian immigrant, divides his time between working in a factory producing electric motors and car parts during the day and occasional sexual encounters with other men in his car at night. Little by little, monotony and uncertainty settle in, both in work and in encounters. What will be the end point for Jonah? What is the reason for this grey weather and the weight of the car, like an iron crust creeping through the night?