Unknown 9: Passage

It’s 1914, and the crew of the SS Talaria descends into a puzzling charade of madness after departing the docks of Cairo. Emilia Duprey, a lone stowaway stealing passage to America, now finds herself entangled in a 100,000-year-old secret fueled by a mysterious entity infecting the minds of those on board.

Selected season 1, episode 1.