The upcoming thriller film “Sister” has released a new main poster featuring Jung Zi So, Lee Soo Hyuk, and Cha Joo Young, immediately drawing attention with its unsettling atmosphere.
“Sister” centers on a kidnapping case driven by conflicting desires and fractured family bonds. Jung Zi So stars as Hae Ran, who kidnaps her own older sister for a large ransom. Lee Soo Hyuk plays Tae Su, the cold strategist who orchestrates the entire plan, while Cha Joo Young portrays So Jin, the hostage fighting desperately to survive and escape. Confined within a limited space, the three characters engage in intense psychological warfare, each driven by different motives and choices.
The newly released poster visually captures this tension through a fragmented composition. The fractured faces of Hae Ran, Tae Su, and So Jin create an immediate sense of unease, while their gazes point in different directions, symbolizing tangled relationships, hidden intentions, and escalating conflict beneath the surface of the kidnapping.
Tae Su is depicted in a striking red tone, emphasizing the danger and violence associated with his role as a ruthless kidnapper. Meanwhile, the poster’s bold tagline—“Today, I kidnapped my older sister,” spoken from Hae Ran’s perspective—adds a sharp narrative hook, intensifying curiosity about how and why this extreme act unfolds.
Through its tightly enclosed setting and layered character dynamics, “Sister” aims to explore emotional collapse and psychological rupture under extreme circumstances. The film is scheduled for theatrical release on January 28, 2026.
