

7.868 minSeason 1 • Episode 6
LatestHarnessing the power of his unique brain and the knowledge of those he synced with, Sewon risks his life to save his family.
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.
Direction
Kim Jee-woon's haunting visual language of fractured consciousness
Acting
Lee Sun-kyun's hollow-eyed unraveling as a man becoming his ghosts
Cinematography
Memory sequences that feel like drowning in someone else's dreams
Trivia, insights & behind the scenes
Lee Sun-kyun tragically died by suicide in 2023, making his hollow performance here unbearably prescient.
Based on a webtoon by Hongjacga, it was Apple's first Korean original—canceled after one season despite critical praise.