Man at home, no power. Thunderstorm. People start shouting outside his door, telling him that they knew he was inside; and a door wasn't good enough to keep them out for long.
He slowly gets up and wears his shoes which were in the room. Then he goes to the next room, where he knew that a broken glass is on the window sill. He picks it up and takes it near the door and scatters it there. And he waits. Pounding began. The door breaks soon.
They run into the living room and are immediately scathed by the glass pieces. He takes advantage of the chaos and knocks one down; though it wasn't good enough to keep him down. Then he sees the guns and that was when he knew that he was done. But still he runs into the next room and waits. He grabs the first guy's hand, takes his gun and shoots him down. He had his flashlight; he flashes it, shoots one. He lies down on the ground and flashes again; shoot another down. Only one now. He foolishly walks into the room, aims and shoots - only to find that he is out of bullets. He runs into the remaining thug and in the scuffle gets shot in the shoulder. Yet, he manages to overpower him. He gets out, locks the door from outside; padlocks it. He gets into his car and drives away. It was still raining.
Later when he came back home he finds no trace of the shooting. Everything is clean. No corpses, no blood stains. He goes and complains to the police. They find nothing. Tells him he is hallucinating. He asks about the wound he has on his shoulder. They find an answer for that too - they find the gun which was used to shoot him, under his bed; and it was licensed under his name, for the last four years.