Ever wandered what happens when you die, the next minute after your soul leaves the body? We don't know anything about Laia Ray, who she was and it really doesn't matter. She obviously had some major injury and died on a table while being admitted to the hospital. At the beginning of the game you can watch how her life slowly fades and vanishes between those bright round hospital lights on the ceiling.
They say that one minute stretches out to an endless and timeless collection of memories to events from your just past life. And you, as a new resident of that world, are trying to figure out how to fit in just like in a puzzle.