The Vicious (12:33)
IMDb; Vimeo; YouTube
This 2019 short film was presented by Alter in 2020.
A family of three (mom, dad, and daughter) are on a road trip, when they get lost. They stop at a farmhouse, where they are greeted by another family of three (dad, daughter, and son). The latter family invites them to stay for the night. There's really nothing else I can say without spoiling things, but there is a plot twist that I thought was decent.
I originally thought I'd list this on my "Alter honorable mentions" page, but eventually I decided it's just barely good enough to merit its own page, even if there's not much I can say about it. But yeah, I think it's worth the watch.