If you've never heard of the movie called Locked, it's because it barely made a blip at the box office earlier this year. However, this thriller has an unusually great pedigree with leading roles played by Bill Skarsgård and Anthony Hopkins. Horror icon Sam Raimi produced Locked, which was directed by David Yarovesky from a script inspired by the Argentine film 4×4. Locked recently made its streaming debut, and it's our pick for the one Hulu movie that you have to stream this month.