The German television channel ZDF together with gosub launched an interactive version of their detective story Rosa Roth.

One interesting aspect is that they show the complete strucuture of the interactive story in the navigation panel. This is probably not that good for the suspense but it really gives the user a feeling for the interactivity.

When the story splits up into two branches, you can see both of them (one in a bigger frame, the other in a smaller one), which is a little confusing.

Another aspect i like about it are the little information icons on the side. When a new character enters the story you can get some information about him by clicking on this symbol.