I just finished the demo. Very strange game! Different, but that's good. Quirky characters, snarky narrator.
At the end of the demo (you get to the part of where you have to guess the murderer) it says that the full version has 5 more mysteries to solve. So, you get all of the 6 mystery episodes when you buy it.
I bought it, downloaded it, and now have access to all episodes.
One thing I had to figure out on my own is that it will say "click to continue" but there is no cursor at times, and to continue just hit the "enter" button on the keyboard.
The puzzles can be tricky. If you get one wrong you can try again. If you give up it shows the solution, so that is good for replay. Under $3 is a good deal, especially if you think of it the way I explained it to my son. "Less than the cost of the smallest Dutch Brothers Coffee!"