Nyanpasu

A person with dark hair and a dark hooded garment stands in a doorway, pointing forward with their right hand while their mouth is open in a scream, then the scene cuts to an anime character with light purple hair and cat-like ears peeking through a doorway, raising their right hand in a wave, their expression shifting from neutral to surprised, then the scene cuts back to the person in the doorway, now holding a large knife in their right hand and screaming, then cuts to a close-up of a hand reaching for a door handle, then cuts to the anime character with wide, red eyes and a shocked express