The Red Queen is holding you on trial, and you try to answer in ways that convince her to let you live. I got executed my first playthrough, but on a later one I found out that you play as the queen's child, which is a nice detail considering that she's still very quick to execute you. I did end up finally finding the spare ending, which was fun to figure out the right combination of choices.
At first I wasn't big on the opening, because for quite a number of choices you don't actually have a choice, but once you start talking you get to choose what you say. I appreciate that the opening feels like a cutscene sequence, but I think maybe there could be a little less looking around.