Scream is part 1 of the Dystopia trilogy, which is about cyber-bullying, hateful comments and people losing themselves in the (fake) online world. It is mostly showing the victim's perspective of (cyber)bullying, comparing it to a medieval witch hunt and a burning at the stake. The tree is the tree of language, and it grows black fruit for every hurtful thing people say. Note also the hand gesture, it is the devil's horns introduced by Ronnie James Dio as a symbol for metal, but it originally was a gesture in the middle ages to ward off the evil eye, tying into the witch hunt theme. I really enjoy the music, it's rock mixed with EDM. Dreamcatcher are always very creative, and they are in their own genre by this point. Part 2 is Boca and part 3 is Odd Eye.