About the film
Three Black Triangles
Release Date: January 01, 1977
|Production Companies||:||Beijing Film Studio, Ningxia Film Group|
|Director||:||Fangqian Chen, Chunlin Liu|
The Public Security Bureau intercept a telegram notifying foreign agents to retrieve the "110 secret". Shi Yan, head of the Reconnaissance Section, starts a campaign of counter-espionage, but one of his agents is soon killed on board a train.