13 GREAT HORROR FILMS YOU HAVEN'T SEEN YET. PROBABLY.
In no particular order, here's a list of 13 spooky, inventive, disgusting, and terrifying horror films that you probably haven't seen, handpicked by DEEPER INTO MOVIES founder Steven Hanley.
Switchblade Romance (2004)

Also known as High Tension (or Haute Tension), Switchblade Romance is a hidden gem of a horror movie and yet another from across the seas that I’ve come to write about. This time, French director, Alexandre Aja, also known for The Hills Have Eyes (2006) and Mirrors (2008), takes gore to a whole new level. Read the full review by Steph Boddy
The Dead Zone (1983)

The Year of the King continues. There are enough Stephen King adaptations to keep any movie/TV fan going for a month. This particular one isn’t even much of a deep dive — it’s generally regarded as one of his best, and it’s directed by David Cronenberg to boot. Read the full review by Ant
Possession (1981)

Self-mutilation with an electric carving knife, the most unpleasant divorce in the history of cinema, multi-coloured viscous pus pouring from every orifice, Isabelle Adjani going mental for 127 minutes and Sam Neill in tight turquoise trousers. You will find all of this and significantly more in director Andrzej Zuwalski’s Possession (1981), an unsung masterpiece of horror which treads carefully between the realms of art house and exploitation cinema. Read the full review by Sam Neill
The Exorcist III (1990)

This under-appreciated and overlooked gem, The Exorcist III, is a head scratcher of a horror film that demands a watch from anyone who considers themselves even a casual fan of the genre. Wedged between the golden age of Christian-themed horror of the late 60’s/early 70’s (Rosemary’s Baby, The Omen) and its later rebirth in the mid-late 90’s (Stigmata, The Prophecy, End of Days), The Exorcist III is a strange beast that tragically never found its footing and suffered more than its share of troubles during production. Read the full review by Casey Desantis
Inside (2007)

French horror has undergone a renaissance in recent years. If there is proof that the J-Horror fad is currently dead, it is the emergence and popularity of French films like Them, High Tension, and this modern classic, Inside. Like many, I’d heard of Inside through online forums and websites. I’d heard how intense and scary it was supposed to be, but went into it with a skeptical eye. After all, how many other “next best thing” type of films have we gone through and been let down by? Plenty. However, I can say without hesitation that Inside belongs on the mantle with the other two great French flicks that I mentioned above, and actually, it may be the best one yet. Read the full review by Wes R
Them (2006)

The eerie suggestiveness of the French-Romanian fright flick “Them” — an almost-real-time thriller, set in and around a besieged house in the woods — seems less old-fashioned than classical. The movie revels in atmosphere, using long unbroken takes and ambient sound (crickets, wind) to lull you into complacency before unleashing nerve-jangling shocks. Read the full review by Matt Zoller Seitz
Tenebrae (1982)

While it is now generally regarded as one of the Italian horror director's most accomplished films, upon its initial release in 1982, Dario Argento's Tenebrae was so reviled in the UK that it found itself cut to ribbons and relegated to the 'video nasty' list. Now recognised as a slyly reflexive and deconstructive commentary on not only Argento's own body of work but also the conventions of the Italian giallo, Tenebrae has experienced a critical reappraisal because of its underlying theme of the effects of violent entertainment on audiences. The twisted tale of an American mystery thriller novelist who becomes caught up in a slew of sadistic murders, seemingly inspired by his latest book, Tenebrae marked Argento's return to the giallo after a successful detour into the supernatural gothic horror of Suspiria (1977) and Inferno (1980). Read the full review by James Gracey
Cherry Falls (1999)

The story of a serial killer who only kills virgins, leading a town’s teens to throw a “Pop Your Cherry” party. That never sat well with the censors back in 1999; repeated demands for cuts were merciless, leading theater chains to fear its ability to fill seats. Eventually, Cherry Falls was sold to the USA network shredded into something appropriate for basic cable audiences; it aired on July 29, 2000. The R-rated version (that was never released theatrically) eventually made its way to DVD on a double feature disc sold with Terror Tract (2000). Read the full review by Joshua Millican
Candyman (1992)

Hello, blood thirsty boils and ghouls. Look at yourself in the mirror and repeat five time…”I must see this film.” That’s right, Horror hounds, it’s Candyman. The film based off of the short story The Forbidden (found in the anthology In the Flesh), by Horror Master Clive Barker (Hellraiser, Lord of Illusions, Nightbreed and his most recent masterpiece of the macabre, Midnight Meat Train). Read the full review by Jay Alan
Halloween 3: Season of the Witch (1982)

No matter how undeniably great a film Halloween was, by the middle of Halloween II some of us - seven or eight of us anyway - were already pretty bored with the idea of watching Michael Myers carving up even more teens. That’s why for that small handful, Halloween III: Season Of The Witch - no matter how different and unexpected and strange it was - came as a blessed relief. Read the full review on Den of Geek
Maniac (2012) or (1980)

The original Maniac is more notorious than famous. It details a murder spree by one Frank Zito, a disturbed misfit who scalps his victims to decorate crude mannequins, the only company that will tolerate him. Khalfoun's chosen method for updating the film was to bring us even closer to killer Frank. It's harrowing enough to spend 90 minutes in his proximity but Khalfoun puts the viewer even closer: right inside his head. The film is shot entirely from Frank's point of view; it's the movie version of a first-person shooter. Read the full review by Phelim O'Neill
House (1977)

One of the earliest films to take advantage of the possibilities of absurdity as horror was House (AKA “Hausu” for those looking to avoid confusion with a lame American ‘80s horror movie or a FOX medical drama). It’s a 1977 Japanese film about a group of girls that enter a haunted house and one by one are devoured in increasingly insane ways. Despite being a hit in its time amongst teenagers, neither critics nor the studio who made the film understood it. They thought it was merely nonsense, nothing more. And nonsense House definitely is, but there’s a chilling factor to that nonsense which most adults of 1977 simply did not understand. They dismissed it, but today film fans consider House to be an obscure gem of wonderful weirdness. Read the full review by Eric Fuchs
Antichrist (2009)

Antichrist opens, simultaneously, with a blaze of unsimulated sex and the death (simulated, one hopes) of a child, who topples from an upstairs window and cannons into the snow below. Bedevilled by guilt, his unnamed parents – He (Willem Dafoe) and She (Charlotte Gainsbourg) – retreat to a cabin in the woods called Eden. There, matters go from bad to worse. Oppressive Defoe winds up hobbled and impotent, while Gainsbourg runs clean off the rails and starts hacking at her own genitals with a pair of scissors. Sitting in the dark of the Cannes Palais, the audience yelped and howled and covered their eyes. Legend has it that at least four viewers fainted dead away in their seats. Read the full review by Xan Brooks