Antebellum
It's a bit hard to talk about this one without spoilers (and in fact I went into it spoiled since I opted against avoiding a spoiler discussion by Slate). So rather than do that I'll just say that the base concept is an interesting one, drawing a line between modern racism/white supremacy and the evil institution of slavery, so as to emphasize the opening quote from Faulkner "The past is never dead. It isn't even past." Watching a bit of a special feature, the initial short story draft was written in a few hours based on a nightmare, and ultimately adapted by the writing duo, whose directing experience is limited to short films/music videos. And ultimately it just feels like something that needed more polishing of the story to make the story beats more compelling. It got advertised heavily as being from the producer of Get Out and Us, which given its racial nature makes you associate it with Jordan Peele, though it just means its a Blumhouse film. I'm left wishing I got the Peele version of this story.