The Fly
Cronenberg again! Imagine realizing you’re pregnant—and feeling extreme dread that the father is your estranged boyfriend who’s lately been obsessed with teleportation and is slowly, extremely grossly transforming into a human-fly hybrid. You, too, might have vividly awful nightmares about giving birth to a maggot baby! (The inferior sequel, not directed by Cronenberg, tells the story of the non-maggot but not exactly normal child’s eventual fate.)