Reborn after dying from heat‑triggered heart shock in college dorm, Jenna relives her nightmare with fanatical roommate Sierra. Obsessed with eco‑activism, Sierra cuts AC power, ruins life‑saving medicine and spreads online smears, pretending to be a self‑sacrificing environmentalist. Jenna uncovers Sierra’s cruel scam: she secretly livestreams roommates’ agony for donations while enjoying luxury air‑conditioned malls. After multiple reckless life‑threatening stunts, Sierra faces expulsion and criminal charges for endangering hundreds of students by wrecking campus power facilities.
