Ángela Vidal (Manuela Velasco), and her cameraman, Pablo, are covering the night shift in one of Barcelona's local fire stations for the documentary television series While You're Sleeping. While they are recording, the firehouse receives a call about an old woman, Mrs. Izquierdo, who is trapped in her apartment and screaming. Ángela and Pablo accompany two of the firefighters, Álex and Manu, to the apartment building, where two police officers are waiting. As they approach the old woman, she becomes aggressive and attacks one of the officers, biting his neck.
Dr. Owen (Jonathan Mellor), an official from the Ministry of Health, and a GEO team equipped with video cameras are sent into a quarantined apartment building to control the situation. After Martos, a GEO officer, is killed and infected encountering some of the infected, Owen uses religious mantra and rosary to hold him off in a room. It turns out that Owen is actually a priest sent by the Vatican to get a blood sample from a possessed girl named Tristana Medeiros.
Koldo and Clara are about to celebrate their wedding day. The wedding is filmed by Koldo's cousin, Adrián, and their wedding photographer, Atun, plus footage cuts from other guests' mobile phones and cameras. The guests travel to the wedding reception, held in a huge mansion, on chartered coaches. Adrián films his uncle, who says he was bitten by a dog, but says he will be all right.
The film opens with the GEOs sent in to recover Ángela. They begin setting bombs all over the apartments, but when they're ambushed by the infected Manu and the old man, they then kill them off and kill the officers infected as well. They then hear Ángela's screams for help and tell her it is time to get out.
On October 9, 2006, Kristi Rey and her husband Daniel are killed by her demon-possessed sister Katie, who then abducts Kristi's one-year-old son, Hunter. Text states that Katie and Hunter's whereabouts remained unknown.
In 1974, Ronald DeFeo, Jr. murdered his family at their house in Amityville, New York. He claimed that he was persuaded to kill them by voices he heard in the house. One year later, married couple George (Ryan Reynolds) and Kathy Lutz (Melissa George) move into the house along with the latter's three children from a previous marriage, Billy, Michael and Chelsea. The family soon begins experiencing paranormal events in the house. Chelsea (Chloë Grace Moretz) claims that she befriended a girl named Jodie, a name belonging to one of the murdered DeFeo children. One day the couple decide to go out, and they hire a babysitter to watch the 3 kids. When the babysitter, Lisa (Rachel Nichols), arrives they come to find out that she had previously been hired to babysit the DeFeos.
Keyes Terry is an art photographer who is given a mirror by a homeless person he meets on the streets. After taking the mirror home, he eventually realizes that it is possessed with the spirit of his father, Franklin Bonner, who murdered his family on Thanksgiving with a shotgun in the original Amityville house.
George and Kathy Lutz are a young married couple who have recently purchased a home and move into the property. George appears not to be strong of faith, but Kathy is at least a nominal Catholic. The couple turn to Father Delaney to bless the home, but Delaney encounters troubles in trying to bless the home, including a room full of flies, out of season; violent stomach sickness; and later, blisters on his palm when trying to make a phone call to Kathy at their home.
Belle, her little sister Juliet, and her comatose twin brother James move into a new house with their single mother Joan in order to save money to help pay for her brother's expensive healthcare. But when strange phenomena begin to occur in the house including the miraculous recovery of her brother and Belle's increasingly horrifying nightmares, Belle begins to suspect her mother isn't telling her everything and soon realizes they just moved into the infamous Amityville house.
The Montelli family; father Anthony (Young), mother Dolores (Alda), elder son Sonny (Magner), elder teenaged daughter Patricia (Franklin) and two younger kids, move into what they think would be the house of their dreams. Initially things begin well, but everything changes after it is discovered that there is a tunnel leading into the house - from where is unknown.
After he exposes a pair of con artists with his partner Melanie (Candy Clark) in the infamous 112 Ocean Avenue house in Amityville journalist John Baxter (Tony Roberts) is persuaded to purchase the house by real estate agent Clifford Sanders (John Harkins). While preparing the house for John, Clifford investigates footsteps in the attic. He is locked in the room, where a swarm of flies attack and kill him. John believes Clifford died of a stroke, even after Melanie shows him some photos she took of the real estate agent before his death which depict him as a rotting corpse.
Par une nuit pluvieuse, 6 prêtres décident d'exorciser la maison d'Amityville, qui a autrefois été le théâtre de terribles meurtres. Tout semble se passer correctement.
Harry Angel (Rourke), is a downtrodden New York City private detective contracted by Louis Cyphre (Robert De Niro) to track down John Liebling, known as Johnny Favorite, who suffered severe neurological trauma resulting from injuries he received in World War II. Favorite's incapacity disrupted a contract with Cyphre regarding unspecified collateral, and Cyphre believes that a private upstate hospital where Favorite was receiving radical psychiatric treatment for shell shock has falsified records, deliberately preventing the contract from being fulfilled. He hires Angel to discover the truth and locate Favorite's true whereabouts.