Paul Conway自(zì )己设计制造(zào )了一架会思(sī )考的机器人,起名“哔哔(bì )”(BB)。哔哔善(shàn )解人意讨人喜欢。万圣(shèng )节晚上,Paul、Tom、Samantha及哔哔想利(lì )用遇节无禁忌的机会(huì ),闯入老处女(nǚ )Elvira Parker小姐的前院(yuàn ),没想到她不通情理朝(cháo )哔哔开枪,打(dǎ )得粉碎,只剩下电脑晶(jīng )片无损。不久(jiǔ )感恩节来临(lín ),Paul邀Samantha共进晚餐,Samantha因此被继(jì )父打落楼梯(tī ),脑部严重撞(zhuàng )伤送医诊断,因脑死而(ér )回天乏术。Paul得(dé )Tom相助,于Samantha脑中植入哔哔(bì )电脑微晶片(piàn ),Samantha因而复活,然(rán )而完全为哔哔之思考(kǎo )模式,哔哔怨(yuàn )恨Samantha的继父和(hé )Elvira Parker小姐,展开复仇……