Well the series is broken down into multiple (I believe there are four "question" chapters and four "answer" chapters) stories (as the games are)...The later "answer" chapters begin to explain everything towards the beginning, so if that's your definition of "getting better" then sure! (I'm personally only up to Episode 8 [second story]...)
I also played the demo last night and it was pretty fun...I did have some framerate issues and annoying camera glitches at times, though...