Director Ho Meng-hua gave erotica more legitimacy as he joined the list of reputable directors that began shooting soft porn with Sinful Adulteress. Starring the busty Chen Ping as a young wife of an older man that can’t satisfy her, and introducing the foxy Liu Hui-ling as the younger daughter of the old man’s first wife, it’s a sexcapade of licentious behavior that erupts through murder and greed.

Lui is a powerful ex-minister who opposes the ambitious premier Hu Wei Yen. Lui is assassinated, so his daughter Lui Sin and an assorted band of people loyal to the emperor seeks revenge and justice. The premier made a mistake - he allowed a scroll of battle orders to fall into loyalist hands. Lui and Co learn this, and vow to take this proof of treason to the emperor.

王家司機老劉（鄭君錦飾）女兒珍珠（何莉莉飾）天生聰明美麗，就讀於大學， 雖芳齡已滿二十，卻從未有過戀愛經驗，好友兼同學蘭茜（黃莎 莉飾）常以此調侃珍珠，珍珠都一笑置之。某日，珍珠因參與蘭茜的生日派對， 眾中邂逅富家青年王震華（林風飾），彼此竟一見鍾情。原來王震華即為老劉任 職的王家大少爺，老太爺年老風濕，雖是王家神經中樞，卻常年坐在輪椅上，震 華為王家所有財產的唯一承繼人，也是王家公司總經理，老太爺對震華管束極嚴 ，雖是二十多歲青年，卻仍派老劉負責接送，間接監視，目的在杜絕他與外間女 子接觸的機會。當日舞會，震華與珍珠巧遇，老劉鑒於彼此身份有別，為恐事態 發展會影響自己飯碗，於是「劫走」珍珠；珍珠亦因不想老父為難，而虛報身份 及住址，期間更鬧出很多笑話，幸好最終震華老父亦甚喜受這位貌似亡妻的小妮 子，有情人終成眷屬。
《那個不多情》另一個搶眼的演員是粵語片諧星鄭君綿，他素以諧趣鬼馬 的演出風格而被人所稱道。鄭君綿他1917年出生於廣東寶安，曾肆業於香港華仁 書院，曾任話劇演員、播音員。1936年開始拍電影，初演反派，後則多演諧角， 參演演出《兩傻》系列（1958-60）、《烏龍王》系列（1960）、《傻人捉賊》（ 1960）、《差利捉貓記》（1969）等等。鄭君綿擅唱各類歌曲，模仿各種唱腔維 妙維肖，得「東方貓王」之美譽。七十年代加入無線電視成為《歡樂今宵》台柱 之一，1995年病逝。
資料來源︰電影雙周刊—Home Entertainment DVD

年青演员甘国亮，独挑大樑，主演「蛇杀手」，演绎这个沉鬱又受社会歧视的变态青年，可谓入木三分。香港电影史上，以蛇杀人为题材，可谓绝无仅有，更难得导演桂治洪大卖血腥暴力之餘，又能成功刻划一个善良青年转变为杀人狂魔的过程，导演桂治洪大卖血腥暴力，凸显蛇杀人的惊心场面，技法出眾。人蛇之间的友谊，相当感人。最后一场，群蛇围堵大屋，肆意狂咬。最后一场，群蛇围堵大屋，肆意狂咬，为香港电影史上其中最噁心动魄一幕。

Chen Kuan-Tai is Big Brother Cheng, a former refugee who runs a local teahouse in Hong Kong. Respected by his peers, Big Brother Cheng runs the teahouse - and unofficially the neighborhood - with a firm righteous hand. However, when the triads come calling, Big Brother Cheng finds out respect and common decency may not be enough. The triads use underage kids to terrorize the teahouse, and since the law won't do anything, Big Brother Cheng may have to step in and take care of it himself!