A group of detectives discoveres murdered teenagers in the city canalization. During the investigation, it becomes clear that no one has ever been looking for them. Studying this case step by step, the police face an absolute evil — the maelstrom of the big city, which sucks in and destroys those whom no one loves and cares for. The evil destroys people with impunity, and each of the heroes will face it personally, and take a look into themselves to meet their own demons and fears.