Sisyphus arrived in 2021 as a South Korean series that folds engineering ambition into a mystery reaching across time, anchored by Cho Seung-woo and Park Shin-hye.
What is Sisyphus about?
The story follows a brilliant engineer whose ordinary life cracks open when he stumbles onto secrets far larger than his own work. A woman claiming to come from the future finds him first, and her arrival forces him to question everything he thought he understood about the incident that upended his world. Told across short, fast-moving episodes, the series keeps its central question — what she knows, and why she came looking for him — running under every scene.
About the cast
Cho Seung-woo and Park Shin-hye head the cast, with Chae Jong-hyeop, Sung Dong-il, Tae In-ho, Tae Won-seok, Jeon Kuk-hwan and Heo Joon-seok completing an ensemble built for a story that keeps expanding its circle of people who know more than they say.
Context & significance
Sisyphus sits in a run of South Korean genre series that use science-fiction machinery to tell a grounded, character-first story rather than lean on spectacle alone. Its combination of action, drama, mystery and speculative premise places it alongside other 2021 Korean productions that found an audience well beyond their home market, part of a broader wave of South Korean television reaching global audiences that year. The premise leans on a single unresolved question rather than a wide roster of subplots, which keeps the pacing tight across a season built from shorter, denser episodes than a typical hour-long drama.
Watching Sisyphus on Ktime
K-Time carries Sisyphus with a Persian dub and Persian subtitles, so viewers can choose either the dubbed track or the original with Farsi subtitles. The service is built around a Farsi-first interface for the Iranian diaspora, and every episode page here is free to read and browse; watching only requires a K-Time account login, with a paid subscription for the viewing itself.