Barely two years after the success of “Gone Girl,” the first trailer for “The Girl on the Train” (warning: some sexually explicit content) promises an equally glossy but possibly sexier thriller about a woman who vanishes under mysterious circumstances. 

“The Girl on the Train” stars Emily Blunt as Rachel Watson, who from the window of her daily commuter train to London gazes at the seemingly perfect lives of Megan and Scott Hipwell (Haley Bennett and Luke Evans). When Rachel hears that Megan has gone missing, she launches her own investigation and finds herself drawn into a web of lies and secrets.

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Like David Fincher’s “Gone Girl” — written by Gillian Flynn from her 2012 best-selling book of the same name — “The Girl on the Train” is based on a novel. In this case, it’s Paula Hawkins’ 2015 debut. The screenplay is by Erin Cressida Wilson, of “Men, Women & Children.” Director Tate Taylor, of “The Help,” faces an uphill battle to distinguish his film from Fincher’s 2014 hit.

The trailer initially strikes a somber note, with Blunt’s Rachel on the verge of tears as she describes the good-looking Hipwells. The setting quickly shifts to the Hipwells’ bedroom, however, as the couple shares some very intimate moments. A close-up on Megan’s yoga-toned body suggests that the relationship was perhaps only skin-deep. Later, a briefly glimpsed martini is our clue that Rachel may suffer from alcoholism — a problem that made her an intriguingly unreliable narrator in the novel.

Kanye West’s “Heartless,” a ballad with roboticized vocals, seems an odd choice for what looks like a serious dramatic thriller. Or will this be an erotic thriller? It’s tough to tell from the trailer.

“The Girl on the Train” arrives in theaters Oct. 7.