Marine Dorner (that's what she signs her checks at least) has been working at the Odessa underground hyper-science facility for three years.

As a janitor.

She couldn't tell you more than that, having just woken up from one of the facility's regularly mandated memory treatments. She has friends here (even if she can't remember all of them yet.) She has an aptly-named roommate, Gabby, who it turns out has been "more than a roommate" at times in-between these treatments.

And yet, despite all the closed doors and lockdowns, the facility seems safe. Comfortable, even. Until Marine wakes up to find everything's gone...very wrong.

What happened to everyone? What was the facility researching?

There are some doors only a janitor can open.

...And some that no one should...