The film begins with Leatherface bludgeoning a young woman, Gina, to death with a sledgehammer before beginning the process of cutting off her face in order to make it into a mask. Gina's sister, Sara watches from a nearby window. Leatherface hears Sara outside, and after she flees, he briefly checks outside before going back to work. Some time later, Michelle and her boyfriend Ryan, a couple that constantly argues, both traveling through Texas, pass through a security checkpoint near the excavation of a large number of butchered bodies, a cop approaches them and interrogates them, shortly after they leave and reach the Last Chance Gas Station. At the station, they meet a hitchhiking cowboy named Tex and the station's perverted owner Alfredo. Tex shows Ryan a route on the map that can get them to a town. A fight soon breaks out between Tex and Alfredo when Tex finds the latter spying on Michelle while she uses the station restroom. As Michelle and Ryan flee from the station in their car, they witness Alfredo apparently killing Tex with a shotgun.
Shortly after the events of the previous film, Tiffany (Jennifer Tilly), a former girlfriend and accomplice of serial killer Charles Lee Ray (voice of Brad Dourif), acquires the remains of Chucky from a police evidence locker after bribing and then murdering a police officer with access to the locker. Assuming that Ray's soul still inhabits the doll, Tiffany takes it back to her place. She crudely stitches Chucky back together and reenacts the voodoo ritual which instilled Ray inside the doll ten years ago.
Picking up after the events of the original film, the people of the small town of Newt, Texas, led by Mayor Burt Hartman (Paul Rae), burn down the farmhouse of the Sawyer family for their role in aiding Jedidiah "Jed" Sawyer (Dan Yeager), also known as "Leatherface", in several murders. The arsonists are celebrated as heroes in the community, and the entire family is presumed dead. However, an infant, Edith Sawyer, is found by one of the townsmen, Gavin Miller (David Born), who promptly murders her mother, Loretta Sawyer (Dodie Brown), and adopts Edith with his wife Arlene (Sue Rock). Twenty years later, Edith has been raised by Gavin and Arlene as Heather Miller (Alexandra Daddario). One day, Heather is notified that her estranged grandmother, Verna Carson (Marilyn Burns), has passed away and left everything to her. Discovering that she was adopted, Heather, her boyfriend Ryan (Trey Songz), and two other friends, Nikki (Tania Raymonde) and Kenny (Keram Malicki-Sánchez), travel to Newt to collect her inheritance. Along the way, the group picks up a hitchhiker named Darryl (Shaun Sipos).
In Los Angeles, FBI Special Agent Joel Campbell (James Spader) is moments too late to save a young woman from a serial killer he has been investigating, who escapes. Campbell quits his job and moves to Chicago, where he is plagued by guilt-induced migraines. Campbell attends therapy sessions with Dr. Polly Beilman (Marisa Tomei), but otherwise has no friends or social life.
As stories about the Kuchisake-onna ("The Slit-Mouthed Woman") spread through a Japanese town, an earthquake causes a corpse matching the entity's description (a woman with long hair, a trench coat, scissors, and a white mask) to break out of a closet in an abandoned house. As that occurs, Noboru Matsuzaki (Haruhiko Kato), a teacher, hears a voice ask "Am I pretty?" At a playground, a boy who had gone looking for the Kuchisake-onna with his friends is grabbed by the creature, which vanishes with him.
Une mère offre une poupée à son fils pour son anniversaire. Elle ignore que ce jouet est défectueux et que son système de programmation a été piraté afin qu'il n'ait aucune limite en matière de violence.
One year after the events of the second film, Kristen Parker is scolded by her mother Elaine to go to bed after staying up all night making a papier-mâché house. Kristen objects but obeys her mother. As she dreams, she is stalked in her model, which is revealed to be 1428 Elm Street, the home of Nancy Thompson and Jesse Walsh. Running from him, she wakes up in her own bed again and realizes it was a dream. The stalker, who is revealed as Freddy Krueger, then appears to her when she goes to wash her face and proceeds to slash her wrists with his claws. Elaine walks in, and Freddy makes the attack appear as a suicide attempt and has her admitted to the hospital for help. Going into hysterics after an attempt to sedate her, Kristen is calmed when Nancy Thompson, a newly hired member of the hospital staff arrives and earns her trust by finishing Freddy's nursery rhyme.
Charles Lee Ray also nicknamed 'Chucky' and the 'Lakeshore Strangler' is a wanted fugitive and is on the run from the police in the streets of Chicago in November 1988. After he is fatally shot by Detective Mike Norris, Charles via a voodoo ritual transfers his soul into a 'Good-Guy' doll which destroys the store in an attempt to cheat death. Mike who survives the explosion finds Charles's body thinking he killed him.
Julie James wakes up screaming in her college class from a dream involving the terrifying, vengeful fisherman, Ben Willis. Julie is attending summer classes in Boston, in avoidance of returning to her hometown of Southport. All the while, she suffers from the painful memories and nightmares, trying to cope with the accident and brutal murders of her friends, Helen Shivers and Barry Cox, from the summer before.
In a flashback, Deborah Myers (Sheri Moon Zombie) visits her son, a young Michael Myers (Chase Wright Vanek), at Smith's Grove Sanitarium. She gives him a white horse statuette as a gift. Michael says that the horse reminds him of a dream he had of Deborah's ghost, dressed in all white and leading a horse down the sanitarium halls toward Michael, telling him she was going to bring him home. Fifteen years later, after having shot an adult Michael (Tyler Mane), Laurie Strode (Scout Taylor-Compton) is found wandering around in a state of shock by Sheriff Brackett (Brad Dourif), who takes Laurie to the emergency room. Meanwhile, the paramedics pick up the Sheriff's daughter and Laurie's friend Annie (Danielle Harris) and Michael's psychiatrist Dr. Loomis (Malcolm McDowell), who are still alive after having been attacked by Michael, and take them to the hospital. Presumed dead, Michael's body is loaded into a separate ambulance. When the driver has a traffic accident, Michael awakens and escapes the ambulance, walking toward a vision of his mother dressed in white and leading a white horse.
Amy Mayfield (Jennifer Morrison) is unsure about her thesis. But after a conversation with security guard Reese Wilson (Loretta Devine), she decides to make a film about a serial killer murdering in the fashion of urban legends.
Three years after the events of the previous film, Laurie Strode (Jamie Lee Curtis) had been sent to a psychiatric hospital after it is revealed that she had beheaded a paramedic instead of her brother Michael Myers (Brad Loree); the paramedic had located the body of Myers in the dining hall of Laurie's school, Hillcrest Academy, after the paramedic tried to grab his mask, Myers attacked him, and crushed his larynx so he wouldn't cry out and forcefully switched clothing and his mask. As Laurie drives the coroner's van out of the school, Myers in the paramedic's clothing walks out of the school grounds and goes into hiding for the next three years.
The day after the events in the previous film, Jason, seriously injured after his encounter, goes to a lakefront store to find clothes and a replacement mask. While there he kills owners Harold (meat cleaver in the chest) and Edna (stabbed in the back of the head with a knitting needle) before moving on to Higgin's Haven, a local farmhouse. At the same time, Chris Higgins and her friends return to Higgin's Haven to spend the weekend. The gang includes pregnant Debbie, her boyfriend Andy, prankster Shelley, his love interest Vera (who initially does not reciprocate his feelings), stoners Chuck and Chili, and Chris's boyfriend Rick.
Two years after Chucky was burned to a crisp and shot in the heart by detective Mike Norris, the killer "Good Guys" doll (voiced by Brad Dourif) is rebuilt from scratch by the Play Pals doll company to prove there is no fault with the dolls. The company had gone downhill ever since Andy Barclay (Alex Vincent) blamed Chucky for all the murders the doll committed two years prior. One of the men working on Chucky is killed via electrocution. The CEO of the company Mr. Sullivan (Peter Haskell) orders his assistant Mattson (Greg Germann) to cover the accident and get rid of Chucky.
The film centres on Riley Jones (Shanley Caswell), a suicidal social outcast at Grizzly Lake High School who harbours an unrequited love for ironically named hipster, and friend since childhood, Clapton Davis (Josh Hutcherson). Clapton is, in turn, head over heels for Ione Foster (Spencer Locke), a beautiful self-absorbed cheerleader who was once best friends with Riley. Their friendship collapsed after Ione pursued Clapton, despite knowing of Riley's feelings for him. All three are waiting out their final year of high school, but it's anyone's guess if they'll ever see graduation, as a serial killer known as Cinderhella is on the loose and preying on Grizzly Lake's student body. The principal (Dane Cook) is certain Cinderhella is a disgruntled student at the school and figures he can keep the prom from turning into a bloodbath by putting the likely suspects in all-day (10:00 AM-10:00 PM) detention on the day of the big dance.