Keanu Reeves gets some unwelcome visitors and Kevin Bacon gets a machine gun
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Maika Monroe in 'It Follows'
"The Guest" co-star plays a teen haunted by nightmares and suffering from paranoia after a "strange sexual encounter."
"It" also stars Keir Gilchrist, Daniel Zovatto, Jake Weary, Olivia Luccardi and Lili Sepe.