A spider eats bugs, animals and humans - often leaving behind a grotesque corpse.
We're told that many spiders like to eat their prey while they're still alive, and we see evidence of this. Humans that are still living, are trapped in webs for example.
Many characters are paralyzed and severely bloodied before they're dragged into the apartment's venting system.
When the spider's still relatively small, it makes its way in and out of someone's (horrified, living) body before cutting itself out with one of its legs. Another victim lies motionless but still living, coughing up blood as he lays on his back. Still another victim essentially vanishes in an explosion of blood.
Someone bleeding heavily from the head falls and hits her head on the edge of a bathtub, where she lies bleeding.
Ethan's comics and Charlotte's artwork contain some violent, creepy imagery.