It should be a Taiwan-Hong Kong production. The movie should be in mandarin.

Title: 邪妻 - Wicked wife / - 策劃導演, 金翁 (即許強) ; 執行導演, 金鳴.
Publisher: 台灣 : 香港金洋影業公司, 1981. 新海影業有限公司 [發行].
Description: 有聲, 彩色.
Credits: 監製, 許強 ; 編劇, 林煌坤, 金鳴 ; 製片, 陸康生 ; 助理導演, 張前威 ; 助理製片, 潘正道 ; 攝影, 黎世傑 ; 燈光, 薛忠 ; 劇務, 張玉璞 ; 劇照, 張福生 ; 服裝, 陳秀花 ; 化妝, 周美雲 ; 道具, 葉慶耀 ; 場務, 吳金華 ; 錄音, 高富國 ; 配樂, 黃茂山 ; 剪接, 江煌雄 ; 配音, 陳明揚 ; 武術指導, 關洪.
Cast: 梁修身, 陸勝蓮, 王俠, 古錚, 關洪.

Screenshots:

This has been the most difficult film I have "done"!
Firstly, most of the names were new. So, I had to put the "english-taiwanese" names... they don't sound very well... If you want to change any name, please tell me...
Secondly, according to WebPAC "director" Gam Yung and producer "Sheu Chiang" are the same person. Merge? Link? The eternal question!
Thirdly, I say "director" because this films has not director. (But who directs the taiwanese films? Or they are directed alone?). We have an executive director and a planning director. I decided put the planning director as director, because he appears alone in the last photo... I think that means HE RULES!

Anyway I'm very satisfied of your contribution here!

The Chinese film title was entered into the DB wrong. (It shows the name of the main actor, instead. )

Fixed!