What Is It?
The 2020 British psychological horror short film Guest by Finn Callan, and available on the YouTube channel Finncallan:
Here is how Wikipedia describes this short film:
Mary, a frightened young woman, wakes up in the bedroom of a stranger’s house with injuries that have left her partially blind and deaf.
The homeowner (The Woman), who bandaged her up after discovering her in the bathroom that morning, manages to slightly restore her hearing by inserting a hearing aid device into her ear and asks her what happened.