In 1937, Japanese troops raid the Chinese city of Nanking to execute a planned massacre by subjecting over 300,000 helpless civilians to various tortures and atrocities before slaughtering them all.

Black Sun: The Nanking Massacre is an uncompromising portrayal of the war crimes perpetrated by the Japanese Imperial Army upon the Chinese military and civilian population of Nanking during the occupation of the city. Hailed by critics as one of the most disturbing films ever released, Black Sun: The Nanking Massacre is unflinching in its depiction of the barbaric cruelty with which the occupying army raped, pillaged and terrorized the defeated populace.—Hotaru