The gruesome first instalment in Oldboy director Park Chan-wook's thematically-linked Vengeance Trilogy, starring Song Kang-ho (Parasite) and Shin Ha-kyun (Welcome to Dongmakgol). A recently laid off factory worker kidnaps the daughter of a wealthy businessman, hoping to use the ransom money to pay for his sister's kidney transplant, but the plan quickly unravels, with violent consequences.
