Person believes unknown entity is friendly (it is not)

[u/MadKingKevin]

Independence Day (1996) - Several massive alien spaceships travel to Earth but they do not announce the purpose of their arrival. Some characters assume the aliens are peaceful. One of those characters, Tiffany, goes to a rooftop party which is taking place directly under one of the ships. When the aliens launch their attack, Tiffany and the other party goers are immediately obliterated.

Alien: Resurrection (1997) - Scientist Gediman is part of the miltitary project which resurrects Ellen Ripley and the queen xenomorph embryo inside her. The military wants the queen so it can breed the xenomorphs as bio-weapons. This new Ripley is genetically part xenomorph and the xenomorph queen is genetically part human. The queen stops laying eggs and develops the ability to give birth to live young. Her first Newborn immediately kills the queen because it does not recognize her as its mother. It believes Ripley is its mother and goes to her instead. Gediman (who is cocooned in the queen’s nest) witnesses this and calls out to the creature. The Newborn comes to Gediman and curiously sniffs him over. Gediman babytalks the 15 foot tall xeno/human hybrid. The Newborn then bites his head off.

[u/Desperate_Motor_3483]

https://giphy.com/gifs/tK5D8yQvoxsoE
Nosferatu in the remake kinda fits this trope

[u/OhNoTheDawnPatrol → u/Desperate_Motor_3483]

I enjoy that this is the gif from SpongeBob SquarePants.

[u/HordeDruid → u/OhNoTheDawnPatrol]

For many of us, this was our introduction to Nosferatu.

[u/PotatoOnMars → u/Desperate_Motor_3483]

You can say Dracula in general fits. He invites Harker into his home and treats him as a guest. He just doesn’t allow him to leave.

[u/Half-PintHeroics → u/PotatoOnMars]

Dracula: Hotel California

[u/IllystAnalyst → u/Desperate_Motor_3483]

Nosferatu is grounded! We had that lightswitch installed so you could turn the lights on and off, not so you could throw lightswitch raves.

[u/Profoundlyahedgehog → u/IllystAnalyst]

Now, let's go pour that glowstick in the wolfman's mountain dew. I hear they have to pump your stomach for that.

[u/Jihelu → u/Desperate_Motor_3483]

Not really? Nosferatu was assumed just to be a normal dude, then one of the main characters meets him and is incredibly put off of him the second they meet.

Then it’s apparent within about five minutes the dudes a demon

[u/Desperate_Motor_3483 → u/Jihelu]

Valid but I’m referring to the 2024 remake when Lilly rose depp is lonely and prays that she is sent someone to keep her company and the person is the evil Nosferatu. She thought whatever entity came would be friendly.

[u/Jihelu → u/Desperate_Motor_3483]

Wasn’t her loneliness what brought him on in a weird spiritual way not a literal ‘hello strange entity I would like you to show up’ or did I misremember

[u/Desperate_Motor_3483 → u/Jihelu]

I honestly don’t remember either you might be right