The movie begins with an FBI agent investigating a ruthless gang inside a building. As he explores, a mysterious shooter starts killing everyone. The agent finds the scene filled with dead bodies and is confronted by the shooter, who holds him at gunpoint and asks if he's a good father. The agent, terrified, insists he is a good person and has two children. The shooter, whose face remains hidden, then disappears into the darkness. The agent finds solace in the thought that he considers his pet Geral as his "children."