Before we move onto this week's review, I've gotta mention that immediately after posting last week's, I heard a theory that I reeeeally hope is true. That is, that the "Derek" we saw in last week's flashbacks is actually Peter Hale. I hope this is the case because otherwise Derek is a pretty terrible character, both writing-wise and as a person. However, if it does turn out to be Peter Hale then I'm still not going to be enormously impressed, because the clues/foreshadowing in the episode were kind of nonsensical. But I'll discuss that in more detail if/when we learn more in future episodes.
"The Girl Who Knew Too Much" was back on classic Teen Wolf form, featuring multiple scenes in the boy's locker room for no reason whatsoever. How many people have died there, now? Not to mention all the fight scenes. Murdering each other in the highschool boy's locker room in the middle of the night: the favourite hobby of Beacon Hills citizens. What I don't understand is why the lights weren't on at the beginning of the episode, because there were clearly a bunch of kids in the school for that music practice. My personal theory is that nobody switched them on because nobody in Beacon Hills has the natural mammalian survival instinct of being afraid of the dark. At last, an explanation for why so many of them wander off into the forest to die! It must be something in the water. Alternatively, they're all were-lemmings. 






