Nothing beats that one I had when I was around 8.
I was spending a few days at my aunt's place. She lived in an apartment building and my best friend lived a couple floors up. At evening, my aunt tells me that my mom is waiting for me at my friend's place. So I take the elevator, go up there, get out of it and see that the door is wide open. I get inside and there's only my mom there, in the middle of the living room. The situation finally weirds me out, why would she come here and where's my friend and her family? When I ask those questions, it gets weirder: whatever I have in front of me isn't behaving like my mom, worse, even though it tries to smile, tries to sound reassuring, that thing looks at me with predator's eyes. I ask it "who are you?" which makes it take a step toward me, still smiling. Fight-or-flight response triggers and I get the shit out of there, slamming the door on my way out (thanks dream for also locking it). While I'm frantically pressing the elevator button, whatever's wearing my mom's skin bashes at the door, trying to get out while hurling insults at me in that cliché demonic voice. Fortunately, I woke up just as the thing broke through it.
Si tu prends encore les propositions, j'ai envie de te suggérer My Name is Earl (S04E27).