i saw a movie last year, cant remember the name. the movie was kinda old, id say early 90'S, maybe end of 80's.

the story is about a man that builds up a robotic arm and gives it a name and feminine voice. then the machine controls the house and gets very jealous. i think, the man had a daughter and the women(robot) wants to kill her with a knife on her finger.

PLEASE help, id like to know the name, maybe its a well-known movie, but im a noob in horror departement xD

THANKS!!!!