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.
- Zhanri: Mystery, Crime, Romance, Action
- Studio: Chung Tin, Wan Shou Film Company
- Fjalen: romance, female spy, spy thriller, anti-japanese war
- Cast: Pai Hung, Ko Chun-Hsiung, Lin Chi, Yang Chen, Yu Tian, Yue Chun-Ying
