This door is a bit of a flirt. With her screen slightly ajar, she says, "come hither." Yet just inside her petticoat screen there's a giant lock on her full underskirt. I guess that makes her a tease. (Door is feminine in French--la porte.)
You might say she's plain, even simple. It's true, if you judge by exteriors alone. But what delights await behind her skirts?
She's for sale, or she was when I took the photo a few weeks ago. Therefore I'll cease with the metaphor. I wouldn't want to sully la porte's reputation. Besides, that changes the whole idea. A tease is exercising power.