Crimson Peak premiered at Fantastic Fest on September 25, 2015, and was released in the United States on October 16, 2015, in standard and IMAX formats.

It received nine nominations at the 42nd Saturn Awards, winning three, including Best Horror Film, Best Supporting Actress for Chastain and Best Production Design for Thomas E. Sanders.

Thomas and Edith become romantically attached, leading her father to hire a private detective who uncovers unsavory facts about the Sharpe siblings.

Thomas marries Edith — giving her a ring taken from Lucille — and they arrive at Allerdale Hall, the Sharpes' dilapidated Cumberland mansion, which is sinking into the red clay mine below.

She is plagued by nightmares and continually visited by gruesome red ghosts around Allerdale, one of which tricks her into opening a closet, where she discovers wax phonograph cylinders, before chasing her into the cellars, where she finds a locked trunk engraved with the name "Enola".

Soon after this, Thomas tells Edith that the estate is referred to as "Crimson Peak" due to the warm clay from the mine leeching up from the ground and staining the winter snow, turning it bright red.

Using the gramophone to listen to the audio recordings on the wax cylinders, and while reading the paper documents, Edith learns that Thomas previously married three other wealthy women — including Enola Sciotti, the letter's intended recipient — and that Lucille has been poisoning Edith with tea as part of the siblings' "marriage and murder" scheme to finance Thomas' inventions.

While directing Pacific Rim, del Toro developed a good working relationship with Legendary Entertainment's Thomas Tull and Jon Jashni, who asked what he wanted to do next.

He cited the latter as "another Mount Everest of the haunted house movie", praising the high production values and Stanley Kubrick's control over the large sets.

[7] British playwright Lucinda Coxon was enlisted to rewrite the script with del Toro, in hopes of bringing it a "proper degree of perversity and intelligence", but she is not credited on the finished film.

[31] On July 6, 2015, four alternate character posters were released, less than a week prior to Legendary Pictures' Crimson Peak panel at San Diego Comic-Con.

[32] On July 11, 2015, John Murdy, creative director of Universal Studios Hollywood's Halloween Horror Nights, announced that the film would be adapted into a maze for the 2015 season.

[4] In the United States and Canada, the film opened simultaneously with Bridge of Spies, Goosebumps, and Woodlawn, on October 16, 2015, in 3,501 theaters, as well as IMAX and premium large formats.

The site's critical consensus reads, "Crimson Peak offers an engaging – albeit somewhat slight – diversion driven by a delightfully creepy atmosphere and director Guillermo del Toro's brilliant knack for unforgettable visuals.

[44] After attending an early screening, horror writer Stephen King called the film "gorgeous and just fucking terrifying", and said it "electrified" him like Sam Raimi's The Evil Dead, whose distribution he helped secure with a rave review in 1982.

King's son, writer Joe Hill, called Crimson Peak "del Toro's blood-soaked Age of Innocence, a gloriously sick waltz through Daphne du Maurier territory".

"[46] Writing on Roger Ebert's official website and giving the movie four stars out of four, Sheila O'Malley said "Watching del Toro's films is a pleasure because his vision is evident in every frame.

"[47] Robbie Collin of The Daily Telegraph wrote that "Its sombre sincerity and hypnotic, treasure-box beauty make Crimson Peak feel like a film out of time – but Del Toro, his cast and his crew carry it off without a single postmodern prod or smirk.

"[49] Observer critic Mark Kermode considered it the director's best film since Pan's Labyrinth and noted the various gothic and horror influences - including Sheridan Le Fanu, Robert Stevenson's Jane Eyre, and Hitchcock's Rebecca - on "one of the year's most handsomely mounted productions.

"[50] Dan Jolin of Empire wrote that "It may be a little overwrought for some tastes, borderline camp at points, but if you're partial to a bit of Victorian romance with Hammer horror gloop and big, frilly night-gowns, GDT delivers an uncommon treat.

"[52] Sara Stewart of the New York Post wrote that "Chastain and Wasikowska take center stage while Hiddleston flutters around like one of Allerdale's huge black moths.

Watching the women square off within del Toro's eye-popping, painterly palette is a feast for the eyes, if not particularly substantial fare for the mind.

"[54] Michael O'Sullivan of The Washington Post wrote that "The film by the stylish fantasist Guillermo del Toro looks marvelous, but has a vein of narrative muck at its core.

"[55] Tom Huddleston of Time Out London wrote that "All three actors work hard... and when the melodrama hits fever pitch, Crimson Peak lurches into life.

"[56] Peter Debruge of Variety wrote that "Aflame with color and awash in symbolism, this undeniably ravishing yet ultimately disappointing haunted-house meller is all surface and no substance, sinking under the weight of its own self-importance into the sanguine muck below.

"[57] Chris Nashawaty of Entertainment Weekly wrote that "Crimson Peak is a cobwebs-and-candelabras chamber piece that's so preoccupied with being visually stunning it forgets to be scary.