[ WP ] you find a door you have never noticed before in a home you 've lived in for 20 years .

Okay, full disclosure, this is not my work. It's from a British Television series but it fits so perfectly that I felt it had to be put here: 
 
 DOCTOR: I need to speak to whoever lives in this house right now. 
 
 AMY: I live here. 
 
 DOCTOR: But you're the police. 
 
 AMY: Yes, and this is where I live. Have you got a problem with that? 
 
 DOCTOR: How many rooms? 
 
 AMY: I'm sorry, what? 
 
 DOCTOR: On this floor. How many rooms on this floor? Count them for me now. 
 
 AMY: Why? 
 
 DOCTOR: Because it will change your life. 
 
 AMY: Five. One, two, three, four, five. 
 
 DOCTOR: Six. 
 
 AMY: Six? 
 
 DOCTOR: Look. 
 
 AMY: Look where? 
 
 DOCTOR: Exactly where you do n't want to look. Where you never want to look. The corner of your eye. Look behind you. 
 
 AMY: That's, that is not possible. How's that possible? 
 
 DOCTOR: There's a perception filter all round the door. Sensed it the last time I was here. Should've seen it. 
 
 AMY: But that's a whole room. That's a whole room I've never even noticed. 
 
 DOCTOR: The filter stops you noticing. Something came a while ago to hide. It's still hiding, and you need to uncuff me now. 
 
 AMY: I do n't have the key. I lost it. 
 
 DOCTOR: How can you have lost it? Stay away from that door! Do not touch that door! Listen to me, do not open that. Why does no-one ever listen to me? Do I just have a face that nobody listens to? 
 ( Amy goes inside the mystery room. ) 
 
 DOCTOR: Again. My screwdriver, where is it? 
 
 [ Room ] 
 
 ( Dirty, boarded up window, packing boxes. ) 
 DOCTOR [ OC ]: Silver thing, blue at the end. Where did it go? 
 
 AMY: There's nothing here. 
 
 DOCTOR: Whatever's there stopped you seeing the room. 
 
 [ Corridor ] 
 
 DOCTOR: What makes you think you could see it? 
 
 [ Room ] 
 
 DOCTOR [ OC ]: Now please, just get out. 
 
 AMY: Silver, blue at the end? 
 
 DOCTOR [ OC ]: My screwdriver, yeah. 
 
 AMY: It's here. 
 
 [ Corridor ] 
 
 DOCTOR: Must have rolled under the door. 
 
 [ Room ] 
 
 AMY: Yeah. Must have. And then it must have jumped up on the table. 
 
 [ Corridor ] 
 
 DOCTOR: Get out of there. 
 
 [ Room ] 
 
 DOCTOR [ OC ]: Get out of there! Get out! 
 ( Amy picks up the screwdriver, which is nearly stuck to the table with gunk. ) 
 
 [ Corridor ] 
 
 DOCTOR: Get out of there! 
 
 [ Room ] 
 
 ( Something snake-like with very long sharp teeth slithers down behind Amy. ) 
 DOCTOR [ OC ]: What is it? What are you doing? 
 
 AMY: There's nothing here, but 
 
 [ Corridor ] 
 
 DOCTOR: Corner of your eye. 
 
 [ Room ] 
 
 AMY; What is it? 
 
 DOCTOR [ OC ]: Do n't try to see it. If it knows you've seen it, it will kill you. Do n't look at it. Do not look. 
 ( Amy turns and finally stares it in the face. She screams. )
