How a creepy 'Cat in the Hat' meme escalated into school threats

Of all the characters you might expect to trigger school closures and police investigations, the Cat in the Hat probably would not be high on the list. Yet a creepy internet reinvention of the Dr. Seuss character is now causing very real disruptions across the United States.

Over the past several weeks, AI-generated and manipulated images have purported to show a life-sized version of the Cat lurking outside homes, staring through windows, and roaming dark streets. The videos often borrow the unsettling appearance of Mike Myers' character in the much-memed 2003 movie adaptation, then present the footage as a local "sighting."

At first, the posts mostly played like internet horror fiction. But as the trend spread, some copycat accounts began naming specific students, schools, and communities alongside phrases such as "you’re next," "don’t leave your window open," and "coming for you." Those messages have now prompted police investigations, increased security, canceled activities, and at least one juvenile arrest.

What is the 'Cat in the Hat' trend?

Like many unsettling internet trends, this one started with a joke that kept getting darker. The trend can be traced back to a meme posted in late June that paired a clip of Myers' Cat dancing with an eerie soundtrack and a grim caption. The now-deleted TikTok reportedly received more than 4 million views in a week, inspiring users to rework footage from the movie into increasingly disturbing memes.

The timing also gave creators some unusually creepy source material. The original costume from the 2003 film recently went up for auction, supplying the internet with images of a hollow-eyed Cat suit that looked considerably more sinister outside the movie.

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From there, users built a loose horror story around a supposed "Cat in the Hat serial killer" stalking communities in the UK and Ireland.

Soon, AI-generated "sightings" began placing the character in driveways, outside windows, and in footage designed to resemble doorbell camera recordings. Other posts falsely claimed the Cat had chased or attacked people. The more local and familiar the setting looked, the easier it became for the fiction to feel real.

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Eventually, police had to step in and explain that the supposed sightings were not real. Authorities in the UK and Ireland repeatedly reassured residents that the images and videos were fake, with Wexford Garda describing them as AI-generated content that placed the character in recognizable locations.

In that sense, the trend resembles the killer clown panic of 2016. This time, however, users do not need to put on a costume to create a local scare; they can generate one from behind a screen.

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Unfortunately, the trend being fake doesn't mean the meme hasn't produced consequences offline. Once the trend reached the United States, some accounts began tailoring the scare to local audiences. Instead of vaguely claiming the Cat had appeared in a town, posts began naming specific schools, communities, and students.

In Kentucky, posts circulating on TikTok and Snapchat included lists of people’s first names and specific locations.

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That was enough to disrupt the school day. Assumption High School in Louisville moved classes online and canceled after-school activities on Monday. Officials told parents that although many posts appeared to be part of the wider trend, some accounts had used threatening language and identified real students and schools, meaning every report still had to be taken seriously.

Other Kentucky districts soon found themselves dealing with similar concerns. Oldham County Schools issued a warning to parents after students received unsettling Snapchat messages. In Bullitt County, a student who encountered one of the posts reported it to their principal, allowing officials to investigate it quickly.

So far, Louisville Metro Police said it had not found information indicating a credible threat. Still, the department's Homeland Security Unit was reviewing the posts and working with school administrators to determine their origin. In Allen County, a juvenile was arrested and is facing charges related to messages tied to the trend.

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And the disruption is not limited to Kentucky. School districts in Texas increased police patrols after videos named students and warned that the character was "coming" to particular communities. A Michigan high school entered a precautionary perimeter lockdown after an account directed a specific threat at students. Officials in Oklahoma ordered a sweep of one high school and increased police presence following a concerning Snapchat post.

The Tennessee Office of Homeland Security's Threat Assessment Center is also tracking posts targeting schools and students in the state and has asked people to report concerning content to authorities.

That is why police are warning users not to treat the trend as an invitation to make their own version. Even if someone thinks they are participating in a joke, posting a threat can lead to school discipline, a police investigation, or criminal charges.

So the Cat in the Hat may not really be hiding outside anyone's window. But once a student's name or school is attached to a threatening message, there is not much room left for fun.