Question: What is the drug the characters use in the film? They inject it like heroin, but they snort it like cocaine. There's also the dialating eyelids, which occur when coke is snorted - so what is the drug in the film? And please don't base the answer on the IMDB.
Question: [Spoilers] What exactly happens to Sarah Goldfarb at the end? Some people say she's in a catatonic state, but she seems to be functioning too well for that. Can someone please explain the situation she's in after the Electric Shock Therapy?