Damn, a bit of a shame the visuals add to be cut at the end, the narrative you made in this was quite interesting, but from what I understood the guy did some weird experiment that turns people to flies/frogs, and at the end you get a taste of your own medicine and end up escaping through the window(having to interact with the window multiple times to leave, in the same fashion a fly hits a window multiple times trying to leave). I'm saying that the mc did leave, but maybe by the screenshot of the frog those three interacts in the window were to communicate despair to escape FROG. Only thing I didn't get was the child the mc was looking for, was the child the frog? Or did the child become a fly and got swallowed by the frog, that's why the mc was trying to disect the frog...
I might be reading too much into this, but anyway really liked this one, amazing!