Happy Umbrella

In a grand, warmly lit building lobby, a man in a dark suit and mask stands defiantly as two people lie motionless on the floor, while another figure in a dark coat aims a gun; the scene shifts to a man in a dark suit and mask running across the lobby, then to a view of a shattered glass door with a figure visible through the broken glass, and finally to a group of people in dark suits standing before the damaged door.