Enigma at St. Paul Hospital The Public Security Bureau investigates an explosion at Chengdu Power Station, which is linked to deaths at St. Paul's Hospital. Details Casts Galleries Posters Title Enigma at St. Paul Hospital Release Date 1990-01-01 Runtime 01 Hours 28 Minutes Genres Crime Thriller Production Companies Emei Film Studio Production Countries China Cai Hongxiang... Shang Fan... Chen Maya... Yu Huiying... Geng Li... ... Wu Shanshan... Yu Na... Wen Haitao... ... Original Size (1280x720) Original Size (1000x1500) Original Size (800x1200)