Questions, questions, questions.
It's a sort of prologue, about an art exhibition by a character that is briefly mentioned in act 1 of the full game. It also functions as a free demo, so you can evaluate whether or not the games particular brand of storytelling is for you. It's as much of a game as text adventures like Zork were games, and it's a lot prettier that those games ever were. Who cares if its art?
Answers, answers, answers.
And a new question I guess...