So I want to write a short story (about 1,500-2,000 words), sci-fi or abstract about someone who recieves a blank package on their doorstep. I was thinking maybe it could be a middle-aged woman who receives it, then gets obsessed with it, but how could I make that into a story with a plot? I don't think I want the box to be opened, but I'm open to all ideas. Please, no aliens/fantasy creatures!
Ideas please :)