天字第一號4:假鴛鴦
The fourth film of the 5-film series The Best Secret Agent series of taiyupian (Taiwanese-language cinema), which was also dubbed into a Mandarin version.
- Genre: Mysterie, Misdaad, Romantiek, Actie
- Studio: Chung Tin, Wan Shou Film Company
- Trefwoord: romance, female spy, spy thriller, anti-japanese war
- Gips: Pai Hung, Ko Chun-Hsiung, Lin Chi, Yang Chen, Yu Tian, Yue Chun-Ying