'Sleep' Trailer: A Man Falls Asleep And Turns Into Something Dangerous In Jason Yu's New Film

Sleepwalking is a fairly normal occurrence. Typically, it’s nothing dangerous. But that’s not the case in the new psychological horror, “Sleep.”

As seen in the trailer, “Sleep” tells the story of a married couple who are seemingly happy. However, when the husband goes to sleep, he wakes up as a different person. Someone who isn’t good. As you might expect, the wife is worried for his safety, as well as her own. 

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The film stars Lee Sun-kyun and Jung Yu-mi. “Sleep” is written and directed by Jason Yu. The film marks the directorial debut for Yu. “Sleep” debuted at this year’s Cannes Critics’ Week. It’s also selected to play at TIFF and Fantastic Fest.

“Sleep” arrives in theaters and VOD on September 27. You can watch the trailer below.

Here’s the synopsis:

SLEEP follows newlyweds Hyun-su (Lee Sun-kyun, PARASITE) and Soo-jin (Jung Yu-mi), whose domestic bliss is disrupted when Hyun-su begins speaking in his sleep, ominously stating, “Someone’s inside.” From that night on, whenever he falls asleep, Hyun-su transforms into someone else, with no recollection of what happened the night before. Overwhelmed with anxiety that he may hurt himself or their young family, Soo-jin can barely sleep because of this irrational fear. Despite treatment, Hyun-su’s sleepwalking only intensifies, and Soo-jin begins to feel that her unborn child may be in danger. A new thriller from director Jason Yu, who worked with Korean legends Bong Joon-ho and Lee Chang-dong before making his debut film, SLEEP world-premiered in Cannes’ Critics’ Week.