I remember this happening for an itch game called Flowers.

You’re a young woman exploring the Texas countryside to find good shots of flowers or other rustic locations. There’s mild interaction with a frightened rabbit but not much else going on.

You eventually find the rabbit butchered. You run, as the sky turns dark. When taking one more photo, suddenly a man in a black tank top holding a knife grabs the camera from you.

You run to a home in the middle of nowhere. An old lady answers, and you beg for protection. She calls on the assistance of her grandson, who is a giant hulking monstrosity who’s stitched a human face over his own. He’s holding a chainsaw.

Pretty impressive ARG for the Texas Chainsaw Massacre game.