As humans turn into savage monsters and the world plunges into terror, a handful of survivors fight for their lives — and to hold on to their humanity.
Brilliant brain scientist Sewon suffers a horrific personal tragedy. Desperate to uncover what happened to his family, he conducts "brain syncs" with the dead to access their memories for clues.
President Hong’s family hit an all-time high after succeeding in their business. The family members, who have been prohibited from leaving the country for years for being involved in gang-related incidents, are finally allowed to go overseas and start preparing for a trip for the first time, but their plans don’t go smoothly
