The first trailer for Girl on the Train has arrived – and it's as creepy as you'd hope.
Emily Blunt is chilling as our alcoholic heroine Rachel, who gets swept up in the mysterious disappearance of a beautiful woman named Megan Hipwell.
She's been spying on Megan from the train she gets on every morning, staring longingly out of the window as it passes her old home – and her old life.
Backed by a soundtrack of Kanye West's 'Heartless', the steamy trailer gives insight into Megan's promiscuous behaviour, troubled marriage to her husband Scott (Luke Evans) and Rachel's lonely and disturbed world.
We see Rachel's ex-husband Tom (Justin Theroux) sternly tell Rachel to stay away from him and his new wife Anna (Rebecca Ferguson).
Meanwhile, Allison Janney is the suspicious detective questioning Rachel's involvement with Megan's sudden disappearance.
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Is our protagonist to be trusted? Can she trust herself?
Following in the hugely successful steps of Gillian Flynn's Gone Girl (the biggest book of 2012 and subsequently a Hollywood film starring Ben Affleck and an Oscar-nominated Rosamund Pike), Girl on the Train is based on the novel by Paula Hawkins - undoubtedly the most-talked-about book of 2015.
The setting has switched from the suburbia outskirts of London to New York.
Directed by Tate Taylor (The Help, Get On Up), the film also stars Edgar Ramirez, Laura Pepron and Lisa Kudrow.
Girl on the Train is released on October 7.
