Black Sun: The Nanking Massacre

Black Sun: The Nanking Massacre, also called Men Behind the Sun 4, is a 1995 Hong Kong historical exploitation horror film written and directed by Mou Tun Fei and is a follow-up to his 1988 film Men Behind the Sun. The movie depicts the events behind the Nanjing Massacre committed by the Imperial Japanese Army against Chinese citizens and refugees during the Second Sino-Japanese War.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.