Horror…

A man stands in a room with green wallpaper, reaching for a light switch on the wall. As he flips the switch, the lights turn off, revealing a figure in a dark robe standing in the doorway, then the lights turn back on, showing the figure has changed into a grotesque, pale-faced person in a tattered outfit. The man reacts by stepping back and moving out of frame. The setting is a room with patterned wallpaper and a tiled floor.