Length?

Played the entire first chapter in less than 20 minutes...is it all that short? If so, probably not going to consider it. I looked through several pages of the reviews and only found one other comment on length...a player made it to Chapter 4 in the demo. If there are 11 Chapters as it seems to indicate, that is a very short game.

I played the entire demo and got into Mai Lee's living room which is in chapter 3. I figure 1 hour playing 3 chapters divided by 12 chapters equals around 4 - 5 hours.