Showtime‘s Dexter cannot be stopped as a TV institution. Eight seasons of the main series and one spin off added up to two head-scratching finales, and Michael C. Hall’s Code-following killer still remains so popular (streaming on both Paramount+ and Netflix) that two Dexter spin offs were greenlit for this year. The first, Original Sin, stars Patrick Gibson as the young-adult Dex coming to grips with his Dark Passenger, and last week’s season finale (streaming on Feb. 14) ended in a way that suggested more was possible.