Julianne Moore, who stars as Michaela in the series, tells TODAY.com the series started as a look at the Greek myth of sirens — winged creatures, half-birds and half-women, with songlike voices capable of luring sailors at sea to their demise.

This story discusses major plot developments from this season of "Sirens," now streaming on Netflix. Meghann Fahy is on a career hot streak, starring in buzzy series like "The White Lotus" and "The Perfect Couple" and films including "Your Monster" and "Drop.