Underground
Overview
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.
About Underground (2026)
Released in 2026, Underground is a mystery and horror film from Korea Creative Content Agency (South Korea). It was directed by Choi Woo-sik. The cast is led by Shin Hyun-soo, Lee Yu-ji, Ko Gun-han, Park Hyun-young and Mun Seong-bok. With a runtime of 1h 32m, the film averages 3.5/10 across 2 TMDB ratings.
To watch Underground online free in HD, press Watch Now above and pick any server; the movie plays instantly on MyFlixer with no account needed. If you like mystery and horror movies, The Cat, Ghost Mansion and Door Lock are worth adding to your list.
