In the video, there are three children in a living room. One child is wearing a black costume and a mask, while the other two are wearing colorful costumes. The child in the black costume is standing in the middle of the room, and the other two children are on either side of him. They are surrounded by balloons of various colors, including pink, white, and red. The children are playing with the balloons, and the one in the black costume is holding a balloon in his hand. The room has a couch and a window with curtains in the background. The children seem to be having fun and enjoying themselves.