Apple TV+’s exciting new sci-fi series Dr. Brain continues to unfurl its mysteries this week. Brilliant neuroscientist Sewon draws closer to ascertaining the full shape of the crimes that claimed the lives of his family, thanks to “brain syncs” with both his wife and an unexpected source.

Meanwhile a number of questions hang in the air. Just who is this private detective helping Sewon find answers? Who is the man in Jaeyi’s memories? And who’s still alive — and who’s really dead?

Hooking up with maverick South Korean director Kim Jee-Woon for new sci-fi series Dr. Brain looks like one of Apple TV+’s smartest, and most mind-blowing, decisions.

The energetically unhinged show, which debuts Thursday, centers on a scientist who devises a way to talk to the dead. Can Dr. Brain rival Netflix’s Squid Game, the latest South Korean phenomenon to become a streaming hit? If the exciting pilot is any indication, this could be a wild success for Apple TV+.