8 Horror Movie Mysteries That Will Never Be Solved

Birdbox threw Sandra Bullock head-first into a Netflix own thriller that ultimately brought her back into the public eye. Her acting skills were not to be faulted, and the premise of the film gave her something fresh and fun to work with.

We see Bullock as Malorie, a heavily pregnant woman who is thrust into a doomsday situation when people begin killing themselves without reason in the street. It is soon revealed that the creature responsible for this is not visible to the human eye, and therefore makes it very difficult to combat. As luck would have it, Bullock's character not only gives birth to a healthy baby boy during the midst of this carnage, but she also becomes adept at travelling outdoors without relying on her sight.

One thing that is never disclosed, however, is the origin of these malevolent creatures. Although not needing to know this information in order to understand the plot, it is a mystery that continues to evade the lore of the film. Despite it being one of the biggest mysteries surrounding the movie, we can't help but wonder if not knowing the creature's origins makes them even more scary!