Tough as Iron

You train for blood not trophies in Busan’s underground gyms. Gang-cheol guards a quiet life till the hospital demands more than his fists earn. Sang-gon slides a contract across the table promising just enough cash, no questions asked. The gym’s neon hums like a lie.

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Our similarity graph picks 6 films based on shared director, keywords, mood-cluster overlap, and MovieLens user co-rating — niche-biased away from blockbusters. Full list: /like/tough-as-iron-2013/.

Ahn Kwon-tae directed Tough as Iron in 2013. See Ahn Kwon-tae's full filmography, where to start with Ahn Kwon-tae, or where to go after you've seen everything by Ahn Kwon-tae.

Tough as Iron was released in 2013 (KO original-language production), with a runtime of 108 minutes.