A taut wartime thriller, Red Crag: Life in Eternal Flame anticipates the paranoia and violence of the imminent Cultural Revolution while harking back to the aesthetic splendour of the Golden Age Shanghai cinema of the late 1940s. (This opulence is largely due to the work of cinematographer Zhu Jinming, the master visual stylist of Shangrao Concentration Camp and other key “Seventeen Years” films.) The film concerns a hard-boiled woman working in the Chongqing Communist underground during World War II, whose commitment to the guerrilla cause is only intensified after she witnesses her husband’s head mounted on the city walls by the Nationalist forces.