Watch: Dan Stevens Helps Around The House In New Trailer For 'The Guest'

The GuestHe’s got good looks and "Downton Abbey" charm. Who wouldn’t let Dan Stevens into their house? But as it turns out in "The Guest," hospitality is not the best policy, and a new trailer for the movie that first rocked Sundance is here.

Maika Monroe, Leland Orser, Sheila Kelley, Brendan Meyer and Lance Reddick co-star in the latest film from horror/thriller fave Adam Wingard, which tells the story of a soldier who arrives at the home of a fallen comrade, claiming to be his friend. He slowly becomes a regular presence at the house, but soon bullets and bodies are flying in a movie we called "a great-looking and sincere genre throwback." ‘The Guest’ certainly looks lean and mean, perhaps the kind of movie you don’t want to know too much about before seeing, so watch the trailer at your peril below.

"The Guest" opens on September 17th.

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