Assassination Nation is a 2018 American satirical black comedy horror thriller film^{[7][8][9][10]} written and directed by Sam Levinson. It stars an ensemble cast led by Odessa Young, Suki Waterhouse, Hari Nef, and Abra. The film takes place in the fictional town of Salem,^[11][12] which devolves into chaos and violence after a computer hacker discovers and leaks personal secrets about many of its residents.

Development of the film began in October 2016, when it was announced as the independent label Foxtail Entertainment's first project. Casting announcements were made throughout 2017 and principal photography commenced in March 2017 and took place in New Orleans. Months later, Neon acquired the film rights with Gozie AGBO, before being joined by 30West and Refinery29.

Assassination Nation had its world premiere at the 2018 Sundance Film Festival on January 21, and was released theatrically in the United States on September 21. It has grossed $2.8 million worldwide and received generally positive reviews from critics, who praised its "frenetic and visually stylish" action but criticized what were called thinly written characters.^[13]

In the town of Salem, high school senior Lily Colson regularly hangs out with her three best friends, Bex Warren and sisters Em and Sarah Lacey. They go to a party where Bex hooks up with her crush Diamond, while Lily hangs out with her boyfriend Mark, simultaneously texting a man only known as Daddy behind his back. After having sex, Diamond tells Bex to keep their hookup a secret, as Bex is transgender.

Marty, a casual hacker, receives a message from an unknown hacker about Mayor Bartlett, a known anti-gay candidate. He reveals pictures of Bartlett engaging with male escorts and dressing up in women's clothing, which Marty forwards to the entire town. During the press conference in which he is supposed to address the facts, Bartlett publicly commits suicide. Salem High's kindhearted Principal Turrell is the next to be hacked, with pictures of his 6-year-old daughter in the bath making people view him as a pedophile. During a meeting with angry parents, he refuses to resign, intending to set things right for the students and do what is best for the school itself.

As the police question Marty about the hacks, a massive data dump of half the people in Salem is posted. Lily's classmate Grace discovers that her best friend Reagan has sent Grace's nude pictures to her boyfriends and they are now public; Grace strikes Reagan with a baseball bat during her cheerleading practice, rendering her comatose. Daddy is revealed to be Em and Sarah's neighbor Nick Mathers, whom Lily used to babysit for. The lewd pictures and videos that Lily sends to Nick are made public when his information is leaked. As a result, she is exposed and humiliated by Mark, and her parents disown her. As she walks down her street, shunned, homeless, and miserable, she is harassed by a man in a truck who films and harasses her before chasing her with a knife. Eventually, she stuns him with a shovel before going into hiding in Em and Sarah's house.

A week later, most of the town has donned masks and taken up arms to get revenge on those they think have wronged them. Nick, now leading a mob of vigilantes in masks, captures Marty, whom they torture into admitting that Lily's IP address seemed to be the source of the hacks. Before executing Marty, they upload a video of his forced confession. The masked assailants track Lily to Em and Sarah's house, where all four girls are staying, and break in. Their mother, Nance, attempts to keep the marauders at bay, but is killed while Lily and Bex escape. Meanwhile, led by Officer Richter, the mob drags Em and Sarah outside and puts them into a police car. Bex takes out one of the attackers with a nail gun and makes her way out onto the streets to find help, while Lily hides in Nick's house.

Nick at first pretends to help Lily before brandishing a knife, intending to rape her to death for exposing the townspeople's secrets and causing the disintegration of his marriage and family. She manages to incapacitate him and hides in the bathroom, where she discovers Marty's corpse. Nick manages to get inside, but after a brief struggle, Lily finally puts him down with a razor blade. She discovers his large cache of weapons, which she uses to gun Richter down and rescue Sarah and Em from his custody. Meanwhile, Bex is captured by Diamond's best friend, Johnny, who tries to force Diamond to hang her as retribution for his humiliation. Bex convinces him to spare her, so Johnny has him tied up and forces him to watch. Lily, Em, and Sarah rescue Bex, eliminating all of Johnny's friends in the process. Johnny surrenders and begs for his life; Bex spares him and frees Diamond. Lily makes a video proclaiming her innocence and urging everyone in Salem to stand up and fight back against their tormentors; she is soon joined by a crowd of victims who are suspected by the mob for wronging them with the hacks.

After the riot, Lily's younger brother Donny, the mastermind behind the hacks, is captured and convicted for cyberterrorism, murder, and invasion of privacy. When he asked why he did it by his parents, Donny replies that he did it to entertain himself from boredom.

The film ends with the Salem High marching band performing Miley Cyrus' "We Can't Stop" through the destroyed town littered with dead bodies and destroyed vehicles.

In addition, Cullen Moss appears as Mayor Bartlett.