When does Dr. Brain return?

Dr. Brain is the first Korean-language show produced for Apple TV+. It debuted on November 4, 2021 to accompany the streaming service's launch in South Korea. Lee Sun-kyun stars in the lead role as a brain scientist trying to solve the mysterious death of his family.
After losing his family in a mysterious accident, Sewon, a brilliant brain scientist, tries to solve what happened. He performs "brain syncs" with the deceased in order to search for clues hidden in their memories.