A vibe of its own

A person in a red shirt moves through a doorway into a room where another person sits, then a man in a Santa hat appears in the doorway, followed by a sudden camera movement, then two people are seen on the floor in a struggle, and finally the man in the Santa hat reappears in the doorway as the person in the red shirt falls to the floor. The scene takes place in a dimly lit room with a white door and a wardrobe.