Dark Hole (Season 1)

Dark Hole (다크홀, 2021) is a South Korean creature-action series you can watch online on iFILM. A sinkhole opens near the town of Muji and starts venting black smoke — anyone who breathes it in loses their mind and mutates into something violent. Detective Lee Hwa-sun (Kim Ok-vin) arrives after witnessing a murder on the outskirts. Former soldier Yoo Tae-han (Lee Joon-hyuk) is already there; Muji is his hometown.

Director Kim Bong-joo drops them into an isolated community where the infected quickly outnumber the survivors. The show blends police-procedural momentum with outbreak horror — no long setup, the chaos kicks in from the first episode. The two leads carry different wounds into the situation, and the series uses that tension well. A solid pick for anyone hunting Korean genre TV that mixes monster action with actual character stakes. Watch Dark Hole online on iFILM.