A hot summer day's coming to an end, giving way to a severe storm. From one moment to another the lives of the protagonists turn into a nightmare. Two friends underestimate the refreshing wind; a small black kitten disappears; and a young mother is looking for her son in the middle of the thunderstorm.
The attacks come out of nowhere and leave behind a blood-soaked trace of destruction and death. Just one unexpected moment is all it needs to unfold its reign of terror and fear. Nobody knows this better than an old homeless man and two brothers from the rundown outskirts of a big city.