Texas Chainsaw 3D is a 2013 sequel to the 1974 film, and it is in no way connected to the remake.The film begins with the Sawyers being killed and their family homestead being burned down shortly after the first film... except for one infant, who is rescued by one of the townspeople and taken in as part of the Miller family. And with that, Edith Sawyer becomes Heather Miller, who decades later, learns that she inherited a mansion from her biological grandmother. She goes there with her friend and boyfriend and they learn the hard way that Leatherface is still alive. Pretty soon, the townspeople learn the truth as well and decide to take their vendetta to Heather herself.A prequel is in the works which will delve into Leatherface's life during his late teens.
Absurdly Sharp Blade: Leatherface's chainsaws can cut through pretty much everything. Including but not limited to A car's carcass and a thick metal chain.
Amoral Attorney: Amusingly adverted. The Sawyer family lawyer seems to be a kind, if secretive, decent old man.
Anachronism Stew: During the scene where Heather learns about her real family, we clearly see the first film is set in 1973, placing this film in the late 1990s, yet we have camera-phones.
Actually, the dates on the tombstones explicitly set this film in 2012. This trope still applies unless we're supposed to believe that Heather is at least 39 years old. And even then, there's the many characters who haven't aged a day since August 19, 1973.
It should be noted that the date of death on all the Sawyer tombstones conveniently have the year obscured and everyone seems to be going out of their way to not mention what year "August 19th" was, except from one incredibly brief moment on the police record (which also screwed up listing it as "August 18th"). So, there's a degree of Ass Pull trying to make it seem like the first movie take place more recently than it obviously was.
The Atoner: Sheriff Hooper feels horribly guilty for allowing the Sawyer massacre to occur under his watch, and is trying to redeem himself. This is the main reason he allows Leatherface to walk free in the end.
The Bad Guy Wins: Leatherface not only gets away with murder at the end of the film, he also gets revenge on the people who killed his family and reunites with his long lost cousin.
Bald Black Leader Guy: Subverted, and then Inverted. While Sheriff Hooper runs the police department, during most of the film, the mayor Burt Hartman is the real leader everyone listens to in the town. That is until Hooper lets Leatherface and Heather kill him in the end. Afterwards, he makes it clear that he's now in charge by telling the two to clean up the mess before he leaves.
Big Bad: Leatherface officially takes this title in the film, being one of the last surviving Sawyer but later on Mayor Burt Hartman takes the role.
Darryl. He poses as a seemingly nice hitchhiker at first, but once Heather and her friends leave him alone at her mansion, he proceeds to loot and vandalize the place.
Deputy Carl Hartman. At first he tries to befriend Heather, but eventually he ends up turning out to be just as cruel as his father Butch, and he tries to get her killed.
Black And Black Morality: Almost all the characters are either antagonists or assholes who have it coming. Heather was the most decent character in the film alive by the end, but by then she has gone through a Face-Heel Turn.
Marilyn Burns appears as Verna, and John Dugan briefly reprises his role as Grandpa in the opening.
Canon Discontinuity: Acts as a direct sequel to the original, thus negating the events of The Texas Chainsaw Massacre 2 which had the original family moving underground to a Texas carnival and Drayton Sawyer still being a public presence in the community with his chili. Ironically, this film still uses the Sawyer names, an element introduced in the original sequel.
Chekhov's Gun: Heather's "crazy little birth mark" serves as a sign to Leatherface that she is a Sawyer.
Continuity Snarl: The film is set in 2012 and is a direct sequel to the original. Heather should be close to 40 and Leatherface should be in his 60s, yet they're played by, respectively, 26-year-old Alexandra Daddario and the middle-aged Dan Yeager. This would just be an example of Playing Gertrude if not for the fact that Heather herself is portrayed as a young adult.
Corrupt Hick: Burt Hartman embodies the trope in letter and spirit.
Despair Event Horizon: Part of what figures in Heather's Face-Heel Turn: She hast lost all of her friends, her adoptive parents are abusive assholes, her other family is entirely dead (minus Leatherface), and the entire town is hellbent on murdering her for no actual reason. She pretty much breaks under the pressure.
Lots of phallic shots of Leatherface's chainsaw, especially as it destroys a van.
The shot as Leatherface stabs a kneeling cop... from behind...
Disproportionate Retribution: Mayor Hartman decides that Heather has to die for simply being related to the Sawyers. Despite having let her live in the past.
Easily Forgiven: It seems Heather completely forgives Leatherface for killing all her friends and trying to murder her when she finds out that they are related. However, it can be argued that she knows it is partially her fault that Leatherface was let loose and go on a rampage. If she had read her grandmother's letter first, most of the deaths would probably have been avoided.
Epilogue Letter: Verna's letter is narrated to the audience near the end when Heather finally gets around to read it.
Even Evil Has Standards: Leatherface decides to spare Heather the minute he realizes she's related to him. Also, despite being a murderous bastard, it is noticeable he only goes after those who tresspassed the mansion grounds or previously harmed his family: When Heather flees to the amusement park, he chases after her, but doesn't even try to harm any of the bystanders.
Face-Heel Turn: Heather at the end, she accepts Leatherface as family, and helps him escape the cops (killing one and becoming a murderer herself in the process).
Fanservice: Plenty of Male Gaze is given to Nikki's assets, and half of her screen-time is spent in skympy clothing or otherwise half-naked, and she is also rather flirty. Ryan also gets to demonstrate his muscled physique in a lot of scenes.
Fan Disservice: Heather is nearly topless in a few scenes, but most of those scenes are in a slaughterhouse, surrounded by psychotic lunatics, and covered in dirt.
Fingore: Heather finds Leatherface in her kitchen, snipping fingers off from a severed hand.
Gorn: The entire film is basically a shameless bloodbath.
Grave Robbing: Heather finds Verna's body unearthed, sitting in her room and in the epilogue, Leatherface is seen re-burying her.
Hope Spot: After Leatherface damages his van, Ryan eventually manages to speed away from him before he can kill him, Nikki, and Heather. And then the van flips out of control and kills Ryan because Leatherface sawed through a tire.
Not So Different: Heather experiences a Sins of Our Fathers punishment from the townsfolk for Sally's torture. This makes the townsfolk fill the same role The Sawyers held in the 74 classic and Heather filling Sally's.
Obliviously Evil: Farnsworth explains Leatherface has no evil intent towards anyone, his Ax-Crazy behavior is how his family taught him to behave.
Offscreen Teleportation: From the way Leatherface emerges out of the nowhere in locked rooms, you'd get the feeling he doesn't walk, but teleports around the mansion.
Hilariously inverted with Nikki. When a police officer is investigating the mansion, he gets so startled by Nikki popping out of a box and screaming at the top of her lungs that he shoots her in the forehead.
Poor Communication Kills: When a lawyer gives you a letter and says you should read it as soon as possible, what do you do? If Heather had done the sensible thing, then we wouldn't have a movie.
Recycled Premise: Following the first film, Heather looks into her dead grandparent's estate, picks up a hitchhiker who unleashes Leatherface and then escapes torture from locals until a gory comeuppance to her captors turns her as crazy as Leatherface.
Tragic Monster: Leatherface is essentially a orphan child in a grown man's body killing not out of malice, but instinct.
Unexpected Inheritance: The premise involves a young woman named Heather who inherits a mansion from a grandmother she never knew she had, only to discover that Leatherface still resides there and that she's his cousin.
Unexplained Recovery: How did Leatherface escape the burning of the Sawyer house and make it to his Grandma Verna's?
Ryan, Heather's boyfriend, cheats on her with Heather's best friend Nikki. Heather doesn't seem to notice or show concern when they were both half naked when she crashes their van into the barn Ryan and Nikki were using after escaping Leatherface.