3 from Hell is a 2019 American horror film written, co-produced, and directed by Rob Zombie. It is the third and final installment in the Firefly trilogy, which began with House of 1000 Corpses (2003), and stars Sheri Moon Zombie, Bill Moseley, Richard Brake and Sid Haig. Ten years have passed since the events of The Devil's Rejects (2005). The plot follows an incarcerated Otis Driftwood and Baby Firefly being freed by Otis's half-brother, after barely surviving a police shootout a decade ago.

Unlike the previous installments, 3 from Hell was given a special three-night theatrical engagement through Fathom Events from September 16–18, 2019, and it received a mixed response from film critics.^[4] Since it grossed nearly $2 million, Fathom Events gave it a one-night release on October 14, before the film was released on home video the following day. This was the last film of Haig's that was released in his lifetime, before his death on September 21, 2019; only five days after the film's release.

The film opens with several news reports about the Firefly family's murderous rampage. Through the reports, it is revealed that Baby, Otis, and Captain Spaulding miraculously survived their shootout with the police and that they will be tried for their crimes. The trial is widely covered nationwide and becomes a cause célèbre, resulting in the organization of protests that insist the trio's innocence. Numerous fanatics also adopt the chant "Free the Three", claiming that their crimes were committed as a means to fight against the system. Despite this, all three are found guilty and sentenced to life in prison. In addition to the final verdict, Captain Spaulding is executed via lethal injection. Otis' half-brother, Winslow Foxworth "Foxy" Coltrane, shows up to help Otis escape from prison while he is outside doing work on a chain gang. In the process, Otis kills Rondo, who was also on the chain gang after having been arrested some time after the end of the previous film and been sent to the same prison but did not recognize Otis. Meanwhile, Baby unsuccessfully seeks parole, as her mental state has further deteriorated since her incarceration.

Once free, Otis and Foxy begin planning to free Baby from prison. To accomplish this, they kidnap the family and friends of the prison's warden, Virgil Dallas Harper. Otis and Foxy demand that Harper help Baby sneak out of prison or they will murder everyone they hold hostage. Harper follows their commands and sneaks Baby out of prison by disguising her as a guard. However, once Baby is freed, Otis and Foxy decide to eliminate the loose ends and kill all the hostages, as well as Harper. Now united, the three are undecided as to what to do next but eventually decide to flee to Mexico, a decision that is made more pressing due to Baby's growing instability.

Otis, Baby, and Foxy manage to successfully cross the border and flee to a small town in Mexico that is celebrating the Day of the Dead and hole up in the town's lone hotel. They briefly worry about being recognized but dismiss these concerns, unaware that the hotel's owner has in fact recognized them and has alerted Rondo's son, Aquarius, to their location. The owner keeps them occupied with both the celebration and local prostitutes, while Aquarius heads out to the location with several henchmen in tow. The following morning, Baby bonds with a local worker, Sebastian, who notices Aquarius's arrival. He warns Baby of the danger before running to warn Otis, just as Aquarius's men break into the whorehouse. Otis and Sebastian hold off the attackers until Foxy arrives and rescues them both. Otis separates from them, managing to successfully find the hotel owner and kill him. During this time, Baby manages to kill several of Aquarius's men using a bow and arrow set she took from Harper's house. Eventually, Foxy and Baby are outmatched by Aquarius and taken prisoner. During this, Aquarius tells Sebastian that he is not worth the bullet and leaves him for dead. Aquarius and his remaining goons use Baby and Foxy to draw Otis out into the open.

Otis appears and squares off against one of Aquarius's men in a knife fight, while Sebastian sneaks up and silently frees both Foxy and Baby. This enrages Aquarius, distracting his man in the knife fight and allowing Otis to gain the upper hand. He, Baby, and Foxy manage to overpower Aquarius; however, Sebastian is shot and killed in the process. The film ends with the trio immolating Aquarius before walking off into the Mexican town and driving away on the same highway from the beginning.

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Principal photography began on March 13, 2018^[18] and wrapped on April 10, 2018.^[19] The Sybil Brand Institute in Los Angeles, a decommissioned women's prison, served as one filming location.

Post-production was postponed five months to allow completion of Zombie's and Marilyn Manson's tour. The editing process began on September 11, 2018, with sound mixing commencing on March 15, 2019, and completed by the end of April.

According to Rob Zombie, Sid Haig was originally going to have a larger role, but was unable to commit for the whole film due to health issues. As a result, the script was rewritten to introduce Richard Brake's character to take his place.^[20] Haig passed away shortly after the film was released on September 21, 2019.^[21]

The first trailer was released in June 2019. Fathom Events held an unrated three-day theatrical release from September 16–18, 2019. The first night featured a special video introduction with Zombie and a commemorative poster. The second featured a behind-the-scenes look at a making-of and all Cinemark locations will be distributing an exclusive bumper sticker designed by Zombie. The third night included a double feature of 3 from Hell and The Devil's Rejects.^[23]

The film earned $1.92 million which was successful enough that Fathom Events announced plans to return the film to theaters on October 14.^[24]