App the Horror
movie

Released February 18, 2026
Overview
When the app is launched, a ghost appears. Developed by four young adults, the app becomes the centerpiece of a livestream where they venture into a supposedly haunted mountain to prove its authenticity—only to meet a grim fate. This chilling event kicks off Unlock, a horror anthology composed of seven short episodes. The series begins with App the horror, followed by The Night Bus, which unfolds on a long-distance bus; Ominous House, which features a ghost-conjuring ritual; The Collector, about the brutal fate of a man who watches an illegal video; Snuff Film, revolving around a vengeful director whose footage was censored; Sweat Home, where a woman's return to her family turns into a nightmare; Haunt, featuring a man paralyzed from head to toe who begins to see ghosts; and Dawn Call, about a group tasked with cleaning up a murder scene in the dead of night.
Cast
Crew
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Hyung Seul-woo
as
Director

Lee Sang-min
as
Director
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Sun Jong-hoon
as
Director
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Son Min-zun
as
Director
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Ko Hee-seop
as
Director
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Hyung Seul-woo
as
Producer

Lee Sang-min
as
Writer
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Choi Jong-man
as
Director of Photography
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Ko Hee-seop
as
Editor
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Choi Su-yong
as
Sound
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Kim Yong
as
Original Music Composer
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Jang Wan
as
Production Design








