It depicts a person wearing what appears to be a plague doctor costume walking and standing around in a dilapidated abandoned building, with a forest visible through former window openings in the wall behind it.

Accompanied by a soundtrack of loud, discordant buzzing noise, the masked figure holds up a hand with an irregularly blinking light.

Messages, many in commonly used ciphers and encryption systems, have been found hidden in the video and its sound spectrogram, as well as images of tortured and mutilated people.

[1] Most of the messages have been decoded by participants in an ongoing Reddit thread, and the images sourced to notable murder investigations such as the Boston Strangler.

After it first came to light in October 2015, it was found that it had been posted to YouTube several months earlier, along with a similarly threatening message in binary code.

Internet investigators managed to establish that it was filmed in the former Zofiówka Sanatorium outside Otwock, Poland, sometime between November 2013 and the video's release.

[1] Three months after the initial controversy, an individual going by the name of Parker Warner Wright claimed to have created the video.

[3] The video begins with shaky footage showing a figure mostly concealed in the shadow between two window-sized openings in a brick wall, through which leaves in trees can be seen blowing in the wind.

[4] The figure remains in shadow, with an insert showing it with cloaked arms spread, as the camera moves farther away and slowly circles to the right.

[4] On October 12, 2015, John-Erik "Johny" Krahbichler, founding editor of the Swedish tech blog GadgetZZ, posted about a "creepy puzzle" that had been sent to him via the mail, perhaps in June.

Reached for comment, the group said it no longer used that website and it had been hacked a few weeks earlier; The Daily Dot said the image appeared to have been one of many posted by the hacker at random.

[1] In late November, after most of the initial talk and speculation about the video, its creator and purpose had died down, a Twitter account was opened under the name Parker Warner Wright.

At the appointed time, a new video, titled 11B-3-1369, in black and white with occasional effects and inserts, was published, with "Their lies unlock our dissent", underneath in the description.

He told reporter Mike Wehner that he was a U.S. citizen who lives in Poland, and that the videos were meant as an art project.

[3] As a way of authenticating himself, Wright challenged visitors to his Facebook page to replicate the plague doctor mask, which he claimed to have designed and built himself.

[16] James Billington of the International Business Times wrote that "some reported [that the video's audio] sound[ed] like 'I would love to kill you' being repeated over and over".

[10] The triangle-and-square message near the end of the video was found to read "Ad oppugnare homines" in Pigpen cipher—Latin for "To attack or target men".

A sequence of 20 pairs of two-digit characters was found to be the latitude and longitude of the White House in Washington; it was later noted that the "RED LIPS" phrase could be an intended anagram for "KILL THE PRESIDENT".

[18] Shortly after the individual calling himself Parker Warner Wright revealed himself as the creator on Twitter at the end of November, he said to those who had been working to decode the texts "you are no closer to understanding the message".

A Redditor noted that the film version of Dan Brown's novel Inferno was beginning production at that time for a late 2016 release.

In the story, a rich villain makes a video warning of his plans to release a virus in order to reduce population growth.

[5] Moviepilot also reported on speculation that the video was intended to promote the upcoming season of the Syfy series 12 Monkeys, based on the Terry Gilliam film of the same name.

[5] Ultimately, it seemed unlikely that any media company, particularly the major studios and television network making Inferno and 12 Monkeys, would risk the negative publicity that would come from using the images in the spectrograms and a suggested threat against a U.S.

It was speculated that it could be viral marketing for his work—other musicians in that genre have been known to hide images in spectrograms—or from some CDs of unreleased work that he said had been stolen from his hotel room.

[6] Parker Warner Wright, whom both Krahblicher and The Daily Dot believed to be the creator of the video, said it and its sequel were the first in a series of art projects.

[3] Wright uploaded another video to his Facebook page entitled 110A30213 on November 5, 2016, three days prior to the 2016 United States presidential election.