UNFRIENDED: Dark Web

*CUT TO THE CHASE*

This spoiler was submitted by Jeremy
NOTE: This is being screened in theaters with two different endings. This spoiler is for only one of those versions.

The film starts with Matias O'Brien (Colin Woodell) working on a new laptop he has acquired, originally belonging to someone named Norah C. IV. After multiple attempts to figure out the password, Matias opens it with simply a question mark. He starts to work on his app Papaya, which hears the user's voice and posts their words on the screen. He is making it for his deaf girlfriend Amaya (Stephanie Nogueras). She gets on a video chat with him so he can show it to her, but she is upset because the app only makes it convenient for her to understand him, but not for him to understand her. She hangs up.

Matias logs out of Norah's Facebook page but still starts to see messages addressed to Norah, asking for plane tickets.

Matias gets on a Skype video call with his friends - tech wiz Damon (Andrew Leeds), conspiracy theorist AJ (Connor Del Rio), DJ Lexx (Savira Windyani), and couple Serena (Rebecca Rittenhouse) and Nari (Betty Gabriel). They start to play Cards Against Humanity while Matias tries to get back in touch with Amaya. The computer keeps crashing, so Matias asks Damon for help. He tells Matias to clean out the hard drive since it may be full. Matias sees that this is indeed the case. During the call, AJ spouts off his loony theories while Serena and Nari reveal that they just got engaged. We also learn that Serena wishes she told her mom sooner because she is in the hospital on life support due to the cancer that has made it to her brain.

On Facebook, Matias continues to see messages for Norah. One of them is from someone named Erica Dunne (Alexa Mansour). The messages get more aggressive until "Erica" turns out to be "Norah C", and they claim that Matias stole their laptop, despite him claiming he got it off Craigslist. He finally admits to having taken it from the cafe and says he will return it to where he found it. As he is logging out, Matias notices something on the laptop in the files section. He shares the screen with his other friends.

Matias sees a message for Norah about payment that they received for a video that Norah shared. The user, Charon68, talks to Matias through another message board, asking if the payment went through. He asks what it was for, and they mention a video, as well as trephination in the video. Matias has to look up trephination, and he and his friends learn it means drilling a hole in the skull. Matias stops talking to Charon68 when it gets too disturbing. Damon realizes that "Norah C." is just Charon spelled backwards, being a reference to the mythological figure that guides the souls of the dead to the underworld. The group then views the videos on the laptop, which contain images of kidnapped girls that appear to be getting tortured. The last video is of a girl sleeping in her room while a kidnapper enters the room and looks at the camera before the video ends. Matias looks up the address on the video and sees that a girl went missing from there...it's Erica Dunne.

Amaya tries to send Matias a video call, and he answers while muting the Skype call and turning off the shared screen. She is not there, but her roommate Kelly (Chelsea Alden) goes to the camera and talks to Matias since Amaya is taking a shower. The screen goes black on Matias's end for a moment, but when it returns to normal, a dark hooded figure is standing behind Kelly. He attacks her and knocks her out before carrying her into the closet. The figure turns out to be Norah C/Charon IV (Douglas Tait). He writes to Matias demanding the laptop back immediately, or he will kill Amaya. He is watching everything that Matias says and does closely, and his messages disappear before Amaya can see them. Charon IV orders Matias to get Amaya to come to his place in an exchange for the laptop, as well as to not let any of his friends leave the call.

Before Amaya returns, Matias notices Nari trying to call the police in response to the videos. He has to stall and say it was all a game he orchestrated since this was their game night. They appear relieved but also pissed for being scared. Lexx then leaves to take a phone call. Amaya comes back and Matias tries to convince her to come over, with Charon IV putting immense pressure on him. She is still upset over the app, thinking that he is not trying to make an effort to learn ASL for her since he only went to one class that she signed him up for. Matias admits that he got scared when the instructor said that having a relationship with someone who is deaf may put some strain on the relationship, but he truly does want it to work out for them both. Amaya then decides to take the subway to meet with Matias, with Charon IV following her closely while she keeps the video chat open so Matias knows she is safe.

In order to ensure that Charon IV complies, Matias transfers all the crypto-currency in his account (amounting up to $10 million) into Matias's own account, a move that freaks Charon IV out. He contacts Matias through a distorted video chat, angrily chiding him for his actions. Matias says he will get the money and laptop back on the promise that Amaya is safe and that Erica is returned home safe as well. Matias then receives messages from The Circle, a group of hackers all using variations of Charon as their handles. They pull Matias into The River, a message board from the dark web that they all use. They appear to know about Matias making the transaction, and Charon IV is forced to reveal his face to talk to Matias. The Charons demand proof that the user is Charon IV, so he tells Matias their creed so that neither of them gets killed. Matias does so, and he is briefly left alone.

The Charons hack the group chat (just like Laura in the first movie) and post a video to the chat. It shows a group of people gathering outside a building. They see what appears to be Lexx standing on the roof of the building. A shadowy and distorted figure (a Charon) appears behind her and pushes her off the ledge to her death. The group is horrified, and once Amaya goes through a tunnel and loses connection (meaning Charon IV can't see Matias), he confesses that everything is real and he is being blackmailed so that Amaya can stay alive.

As the group scrambles to find a solution, the Charons pull up videos of AJ's YouTube channel with audio clips of his ramblings. They then call 911 and use the audio to make it sound like AJ is planning to shoot up the mall. The call was made 10 minutes earlier, and the police are already banging on his door. The others order AJ to get on the ground, but he instead starts going up the stairs to try and talk to the police. Instead of talking, they blast AJ to death, and the group is forced to watch.

Nari leaves to go get help from her friend on the police force. The Charons then play a video they caught of Nari and Serena talking before revealing their engagement to their friends, and Serena talking about her mother. The Charons then share camera footage of Nari at the subway and Serena's mother on life support at the hospital. They force Serena to choose which one will live. Serena tearfully pleads with them to not do this, and for them to take her instead. When the countdown ends, the Charons pull her mom off life support, and one of them pushes Nari in front of the train. Another Charon finds Serena in her house and kills her offscreen. The train that killed Nari is the same one that Amaya was riding, so she gets off to take another route. Matias attempts to sign to her to meet her somewhere they know.

Matias rushes to Amaya on his bike while leaving the laptop open. Damon talks to the Charons and says he has been recording everything for the police to find, along with their addresses. However, the Charons turn the tables on everyone. They take a picture of Matias and photoshop it onto the video of the guy that kidnapped Erica. A Charon then brings Erica into Matias's closet. She wakes up and goes to the computer begging for help. There is a welt on her forehead from the trephination procedure, which she peels off to reveal the hole in her skull. The video cuts off, and Damon realizes the Charons were planning this all along, for Matias to have the laptop and the money so it looks like he and his friends committed the kidnappings and tortures. Moments later, a Charon pulls up a word document on the screen, just as another Charon pulls Damon in by a noose around his neck and hangs him by his closet door. The other Charon writes a fake suicide note/confession as Damon slowly and painfully dies.

Matias rides his bike to the spot where he and Amaya shared their first kiss. He comes across an open grave with a casket, and a Charon appears behind him and knocks him out. It cuts to later when Amaya walks by the spot, and the hole has been filled. She tries to contact Matias, who is now buried underground. He tries to write to Amaya, but the Charons replace all his messages with "I wish I could sign better". He tries to video-chat with her, but his mouth is distorted so that she can't read his lips. Matias desperately tries to call out to her as he is running out of air, and the last thing we see are the Charons on their separate video screens, tauntingly watching Matias slowly suffocate and begging for help.

UPDATE: In the alternate ending, Matias simply gets hit by a truck and dies.