

Seung-hyeon, a construction team leader with PTSD, is ordered to inspect Dohak Station, where a fatal accident halted work years ago. Inside the eerie, abandoned tunnels, he and Joo-young encounter two mysterious workers and become lost while trying to escape. Meanwhile, a CEO and a shaman perform a ritual to resume construction, but enraged spirits retaliate, plunging everyone into chaos.
Underground was directed by Choi Woo-sik.
Underground holds an average rating of 3.5/10 on TMDB, and it lands best with fans of horror and mystery. Join the discussion below to add your take.
Underground runs for 1h 32min, and was released in 2026.
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