The Black Killer

Directed by Chiang Wai-Kwong

A 1967 Cantonese language action film directed by Cheung Wai-Gwong, starring Connie Chan, Adam Cheng and Liu Chia-Liang. Ming-Wai & Ming-Sing, a brother and sister (dual roles played by Connie Chan) who must go undercover in a gang to rescue their uncle.