Quinn McKenna, membre d'un commando de Rangers américains, est témoin du crash d'un vaisseau spatial lors d'une mission de sauvetage d’otages. Il est le seul survivant. Il découvre le casque et l'arme d'un Predator. Poursuivi, il décide de les envoyer par la poste à son domicile, où vit son épouse et son fils autiste, Rory. Ce dernier parvient à utiliser le masque et l'arme du Predator. Il active par ailleurs une balise qui permet à d'autres Predators de le localiser. De son côté, Quinn a été arrêté par de mystérieux mercenaires, aux ordres de Will Traeger pour le Projet Stargazer. Ce dernier fait par ailleurs appel au docteure Casey Bracket, une exo-biologiste. Elle est accueillie dans un immense complexe dans lequel est conservé un Predator. Quant à Quinn, il se retrouve dans un bus avec d'anciens soldats ayant commis de graves délits et dont la plupart souffrent de troubles psychologiques : "Nebraska" Williams, Baxley, Coyle, Lynch et Nettles.
Christian Wolff est un génie mathématique et spécialiste de juricomptabilité qui travaille pour une firme comptable en Illinois. Il accepte des contrats de groupes criminels, contrats transmis par téléphone portable (cellulaire) par une femme inconnue, « La Voix ». Dans son enfance, lors d'une visite au Harbor Neuroscience Institute, centre pour enfants atteints de troubles de santé mentale, les parents de Christian reçoivent l'offre de laisser leur enfant sous la responsabilité du directeur, qui propose de trouver les conditions de vie où Christian s'épanouira. Entre-temps, Christian établit un lien avec Justine, troublée et muette. Le père de Christian, un officier militaire américain, rejette la proposition, jugeant que son fils doit surmonter son handicap. Plus tard, la mère quitte la famille parce qu'elle est incapable de supporter plus longuement les comportements excentriques, parfois violents, de Christian ; elle abandonne aussi son deuxième garçon, Braxton. Dans le but de les aider à relever les défis de leur vie adulte, le père engage des spécialistes pour former ses deux fils au combat.
À Los Angeles, Martin vit seul avec sa mère, Sophie, depuis que son père a été mystérieusement assassiné à son travail. Un soir, il entend de nouveau sa mère parler seule. Sortant de sa chambre, il est témoin d'un phénomène aussi surnaturel que terrifiant qui l'empêche de dormir. Il finit par se réfugier chez Rebecca, sa demi-sœur plus âgée qui a quitté la maison familiale et n'entretient aucun contact avec sa mère. Les apparitions inquiétantes se produisant sous les yeux de celle-ci et dans son appartement, elle décide de percer le mystère qui entoure leur mère et qui ne semblent faire son apparition qu'en l'absence de lumière...
In 1978, narcissistic, manipulative Madeline Ashton performs in a musical on Broadway. Madeline invites long-time rival Helen Sharp, an aspiring writer, backstage along with her fiancé, plastic surgeon Ernest Menville. Ernest is smitten with Madeline, soon breaking off his engagement with Helen to marry her. Seven years later, Helen is in a psychiatric hospital after fixating upon Madeline. Obese and depressed, Helen feigns rehabilitation and is released, plotting revenge on Madeline.
Informant Michael Marks wakes up to find a spike-filled mask locked around his neck. A videotape informs him that he has sixty seconds to remove his eye with the scalpel and retrieve the key, but he cannot bring himself to do so and is killed when the mask closes. Detective Eric Matthews, is called to the scene by Detective Allison Kerry when a message for him is found. Although he is initially reluctant to join the case, Eric joins Kerry and Sergeant Daniel Rigg in leading a SWAT team to an old factory. There they find the John Kramer, The Jigsaw Killer, who he is weak from cancer, and several computer monitors showing eight people trapped in a house. Among them are Amanda Young, Jigsaw's only known survivor, and Eric's estranged son Daniel. A nerve agent filling the house will kill them within two hours, but John assures Eric he will get Daniel back if Eric talks with John until the game is complete. At Kerry's urging, Eric reluctantly agrees in order to buy time for the police tech team to arrive and trace the video signal.
U.S. Army pilot Captain Colter Stevens (Jake Gyllenhaal), last aware of being on a mission in Afghanistan, wakes up on a commuter train to Chicago, at 7:40 am. To the world around him – including his traveling partner Christina Warren (Michelle Monaghan) and the bathroom mirror – he appears to be Sean Fentress, a school teacher. As he comes to grips with this revelation, the train explodes, killing everyone aboard.
Psychiatrist Dr. Miranda Grey (Halle Berry) works at a mental hospital and has a car accident after trying to avoid a girl (Kathleen Mackey) on a road during a stormy night while driving back home. She rushes to try to help the girl. The girl turns out to be a ghost and possesses Miranda's body by burning her after she extends her hand to the girl. Miranda loses consciousness. Miranda next wakes up in the very hospital she works for, but as a patient treated by her co-worker, Dr. Pete Graham (Robert Downey, Jr.). Drugged and confused, she remembers nothing of what happened after the car accident. To her horror, she learns that her husband Douglas (Charles S. Dutton) was brutally murdered and that she is the primary suspect. While Miranda copes with her new life in the hospital, the ghost uses her body to carry out messages (most noticeably, she carves the words "not alone" into Miranda's arm), which leads her former colleagues to believe Miranda is suicidal and is inflicting the wounds on herself.
During John Kramer's autopsy, a wax-coated microcassette is found in his stomach. Detective Mark Hoffman is called in and learns from it that he will still be tested and, despite Kramer's death, the games will continue. In a mausoleum, two men awaken chained at the neck to a winch. One's eyes are sewn shut, as is the other's mouth, making communication impossible. In a blind panic, the blinded man activates the winch and attacks the muted man, who kills him and frees himself with the key on the other collar.
Alice Sutton (Julia Roberts) is a lawyer working for the U.S. government at the Justice Department. Jerry Fletcher (Mel Gibson), a conspiracy-theory obsessed New York City taxi driver, continually expounds his ideas to her. Alice humors him because he once saved her from a mugging, but does not know he has been spying on her at home. Her own obsession is to solve the mystery of her father's murder.
Two men, Brad and Ryan, wake up in a metropolitan storefront window. Each man is bound at the wrists to opposite side of a worktable with a circular saw in front of them. Their mutual lover, Dina, is suspended above a third saw. As a crowd gathers and police attempt to break the window, a puppet informs the men that one of them can kill the other or they can let Dina die. They initially fight each other, during which Brad is cut, but they soon realize Dina's betrayal and allow her to die instead.
The film begins with the sentencing of Jean-Baptiste Grenouille (Ben Whishaw), a notorious murderer. Between the reading of the sentence and the execution, the story of his life is told in flashback, beginning with his abandonment at birth in a French fish market. Raised in an orphanage, Grenouille grows into a strangely detached boy with a superhuman sense of smell. After growing to maturity as a tanner's apprentice, he makes his first delivery to Paris, where he revels in the new odors. He focuses on a redheaded girl (Karoline Herfurth) selling yellow plums, following her and repeatedly attempting to sniff her, but startles her with his behavior. To prevent her from crying out, he covers the girl's mouth and unintentionally suffocates her. After realizing that she is dead, he strips her body naked and smells her all over, becoming distraught when her scent fades. Afterwards, Grenouille is haunted by the desire to recreate the girl's aroma.
En 2005, à Wall Street, au milieu des grandes banques, des médias et du gouvernement aveugles, quatre outsiders découvrent la bulle immobilière et l'opacité de son financement. Par l'analyse et l'enquête sur le terrain ils rejettent l'idéologie et l'optimisme écrasants de leur milieu. Ils sont les seuls à se positionner dans le sens de la débâcle qui leur apparaît certaine.
Dr. Martin Harris and his wife Liz arrive in Berlin for a biotechnology summit. Martin realizes he left his briefcase at the airport and takes a taxi to retrieve it. When they are involved in an accident, the driver, Gina, rescues him and flees the scene, as she is an illegal immigrant. Martin regains consciousness at a hospital after having been in a coma for four days.
Tom Ripley is a young man struggling to make a living in 1950s New York City using his "talents"—forgery, lying and impersonation. While playing piano at a cocktail party in New York City, he is approached by wealthy shipbuilder Herbert Greenleaf, who mistakenly believes that Ripley went to Princeton with his son, Dickie, because Ripley is wearing a borrowed Princeton blazer. Greenleaf recruits Ripley to travel to Italy and persuade Dickie to return to the United States, for which he will pay Ripley $1,000 (equivalent to $8 804 in 2015). Ripley accepts the proposal, even though he did not attend Princeton and has never met Dickie.
Following his discovery of the body of his wife (Amy Irving) in a bathtub after her apparent suicide, Dr. David Callaway (Robert De Niro), a psychologist working in New York City, decides to move with his 9-year-old daughter Emily (Dakota Fanning) to Upstate New York. There, Emily makes an apparently imaginary friend she calls "Charlie". Her friendship with Charlie begins to disturb David when he discovers their cat dead in the bathtub, whom Emily claims was a victim of "Charlie". Meanwhile, David suffers from nightmares of the New Year's Eve party that occurred the night before his wife died.