Why?

What starts as a poignant medical documentary about Deborah Logan's descent into Alzheimer's disease and her daughter's struggles as caregiver degenerates into a maddening portrayal of dementia at its most frightening, as hair-raising events begin to plague the family and crew and an unspeakable malevolence threatens to tear the very fabric of sanity from them all.

Retired military commander Colonel Dale Murphy hosts the simulated post-apocalyptic reality show where participants are challenged to survive a remote West Virginia wasteland. But the show turns into a nightmarish showdown when each realizes they are being hunted by an inbred family of cannibals determined to make them all dinner!

Desperate to repay his debt to his ex-wife, an ex-con plots a heist at his new employer's country home, unaware that a second criminal has also targeted the property, and rigged it with a series of deadly traps.

Nothing is what it seems when a twisted one-night stand spirals into a serial killer’s vicious murder spree.

Grindhouse combines Robert Rodriguez's Planet Terror, a horror comedy about a group of survivors who battle zombie-like creatures, and Quentin Tarantino's Death Proof, an action thriller about a murderous stuntman who kills young women with modified vehicles. It is presented as a double feature with fictitious exploitation trailers preceding each segment.

Based on Wes Craven's 1977 suspenseful cult classic, The Hills Have Eyes is the story of a family road trip that goes terrifyingly awry when the travelers become stranded in a government atomic zone. Miles from nowhere, the Carter family soon realizes the seemingly uninhabited wasteland is actually the breeding ground of a blood-thirsty mutant family...and they are the prey.

Two teenage couples traveling across the backwoods of Texas searching for urban legends of serial killers end up as prisoners of a bizarre and sadistic backwater family of serial killers.

A couple’s romantic vacation at a secluded lakeside estate is upended when they are forced to share the mansion with a mysterious and attractive couple. In this darkly hilarious and seductive horror story, a dream getaway spirals into a nightmarish maze of sex, lies, and manipulation, bringing terrifying secrets to light and triggering a bloody battle for survival.

Ten years after his original massacre, the invalid Michael Myers awakens on Halloween Eve and returns to Haddonfield to kill his seven-year-old niece.

A detective tries to track down a masked killer who reappears every Halloween to wreak bloody havoc.

Five years after the horrible bloodbath at Camp Crystal Lake, new counselors roam the area, not sensing the ominous lurking presence that proves that the grisly legend is real.

After picking up a traumatized young hitchhiker, five friends find themselves stalked and hunted by a chainsaw-wielding killer and his family of equally psychopathic killers.

Freddy Krueger and Jason Voorhees return to terrorize the teenagers of Elm Street. Only this time, they're out to get each other, too.

Following the brutal murder of her husband, a Kansas highway patrol officer sets out on a journey to track down the perpetrator. As the hunt progresses, she comes to realize the man responsible is a sadistic serial killer, and the depth of his mental depravity and his sinister agenda is more twisted than anyone could have imagined.

Chrissie and her friends set out on a road trip for a final fling before one is shipped off to Vietnam. Along the way, bikers harass the foursome and cause an accident that throws Chrissie from the vehicle. The lawman who arrives on the scene kills one of the bikers and brings Chrissie's friends to the Hewitt homestead, where young Leatherface is learning the tools of terror.

Jen and a group of friends set out to hike the Appalachian Trail. Despite warnings to stick to the trail, the hikers stray off course—and cross into land inhabited by The Foundation, a hidden community of mountain dwellers who use deadly means to protect their way of life.

Young Macy is abducted by a deranged, monstrous figure who wants to raise her as its child.

Evan values family above all else, and anyone who gets between him, his wife, and newborn son learns that the hard way. But when it comes to violent tendencies, it seems the apple doesn’t fall far from the tree.