This article contains MAJOR SPOILERS for the plot and creatures in Bird Box. If you’ve not watched the film and do not want to be spoiled, we recommend you head to Netflix first before reading. If you have seen it or don’t care about being spoiled, read away! Netflix‘s new film Bird Box hit the streaming service this week, and is just the sort of project that’s bound to kick up theories. If you’ve seen the film, or read the book by Josh Malerman, you’ll know the deal: Sandra Bullock plays Malorie, a pregnant woman whose reality is disrupted when mysterious creatures show up one day. The creatures, completely incomprehensible to the human mind, cause anyone who gazes at them to spontaneously commit suicide, which leads to a global crisis. After her sister Jessica ( Sarah Paulson) dies in the chaos, Malorie finds refuge in a house with other survivors, and is able to live for another five years past that; she gives birth and raises another woman’s child, and they stay blindfolded anytime they wander outside. After receiving a call from a man named Rick, Malorie sets off with her children, hopeful that Rick is telling the truth and that a sanctuary exists somewhere in this new, ruined world. [mpx_video type=”editorial” guid=”2feca8cb46fb81a85ee3e0d883e3b2d73ee88534″]

In both the book and the film, we never learn the true identity of these mysterious creatures. We don’t know what they look like, we don’t know their motivations, we don’t get any sort of explanation for what is truly going on. This may frustrate some viewers, but ultimately, it’s sort of the whole point; in fact, one could argue they’re a metaphor for depression, and equally unquantifiable things.But that didn’t stop us from hatching some theories about what the creatures could be, given context clues in the story and what we know about this kind of storytelling. Here are five of our best guesses.

Chemical biowarfare

This is what John Malkovich‘s Douglas theorizes near the film’s opening. He blames it on North Korea, but there’s no indication that this is actually true. Still, it remains a possibility; perhaps a global enemy released some sort of chemical agent that drove people insane and suicidal so they could wipe out large portions of the population without destroying the planet. Although this doesn’t make a ton of sense. As we see on the news, the creatures’ arrival isn’t contained to one country, and in the books we also see that it drives animals mad, which would kill off food supplies. This one seems less likely the more you think about it.

Aliens

Whenever weird, inexplicable things spontaneously come to Earth, it’s pretty easy to blame it on aliens. There’s nothing that explicitly points to this being the case in Bird Box, but we can’t rule it out entirely. Perhaps these creatures are so advanced or otherworldly that they don’t register properly to the human brain, inspiring instant madness. This concept has been toyed with in other sci-fi stories, so it’s not beyond the realm of possible options.

Psychosomatic hysteria

Mass hysteria is an actual thing that occurs in our world, from the Tanganyika laughter epidemic in 1962 or the Strasbourg dancing plague in 1518, and is described as “the rapid spread of illness signs and symptoms affecting members of a cohesive group.” While there are a number of theories as to why these events happen, there are thousands of documented cases, which means it’s technically possible something like this occurred on a larger scale in the Bird Box universe. Perhaps current events or the threat of climate change disrupted psyches so much that humanity started turning on itself, leading to an outbreak of sorts.

Inter-dimensional beings

Similar to aliens, maybe a tear in the universe happened and these mysterious creatures slipped through. That’s what happened in The Mist, so it could happen here too!

Lovecraftian monsters

This one is definitely our favorite theory, and is probably the one that tracks the most. In the film, it’s heavily implied that the clinically insane aren’t driven to suicide after seeing the beings, but come away enlightened. After encountering the monsters, they’ll say things like “it shall cleanse the world” and “I’ve seen the truth.” One of the people who witnesses the creatures and lives to tell the tale is Gary, a survivor in Malorie’s refuge house, who draws pictures of black, tentacled creatures with white eyes who come from the sky. These could be aliens or inter-dimensional beings, sure, but they look and sounds way more Cthulhu–an ancient, cosmic being hibernating deep within the Earth–than your average alien invasion movie or Stephen King plot.

Images: Netflix