At Haesung Academy, wealth can bury almost anything — even a death. After a rooftop party ends with student Lee Hae-won falling to his death, six elite seniors swear to leave the night behind them. Ruled an accident and protected by powerful families, the case quickly fades from the public eye. But months later, rumors begin resurfacing, anonymous messages start appearing, and the group’s perfect lives begin falling apart under the weight of what really happened that night.