This whole comment is probably gonna be spoilers. After waking up in the cage, I got stuck. Couldn't figure out what to do. Before that point, however, it was a sufficiently creepy meta kind of game and I really was enjoying how it was presented. The story was kind of non-existent, but if you dug a little, there were bits of lore. However, there weren't enough (at least in how far I got) that any of it started to make sense or paint a picture aside from someone being upset about something. And as KV pointed out, the mouse being the only input was both good AND bad. It may have been easier if the mouse was how you initiated things, but a separate button was used for dialog advancement.