Los Últimos Días
In Los Últimos Días, English title The Last Days, an extreme agoraphobia pandemic has swept the planet. Nobody can go outside without experiencing a fatal seizure. The movie doesn’t spend any time trying to explain the cause (which is good; better than a terrible explanation), but the Panic, as it is known, starts with a few cases and then affects more people over time until eventually everybody is trapped in whatever building they were last in. This sets us up for a story in a post apocalyptic world that’s a little different than the typical zombie virus plague outbreak.
It’s not a great movie (relies too much on flashbacks for my taste), but the concept is intriguing. Different spaces (office building, subway station, apartment building, indoor mall) all follow their own Lord of the Flies trajectory based on their occupant mix.