Who are you talking to? is a work in progress piece where you are confronted by a strange creature, in an unknown place, unable to leave. You can talk to the creature, asking them questions, and go over some of your most recent memories. Being an unfinished piece, there are timed where the game ends abruptly, forcing you to rewind and pick a different path to reach the end. There are at least 8 endings, though I’ve only managed to reach one.
From the tone of your interlocutor, my reading of the game (so far) is that you (Spoiler - click to show)died and are talking to some otherworldly being (maybe a God?), assessing your nature and action back when you were alive (though it seems your fate is sealed). You have the option of showing remorse towards your actions or doubling down. That or aliens.