Man has three robots and the second one kills itself

Fictional story following the lines of a Frankenstein type horror movie: A grim scientist, when two of the robots he has created fall in love, orders his third robot to destroy the male one. The female robot subsequently seduces her creator scientist into drinking from a poisoned cup, and makes her escape..... Robot Three was awarded the Victor Saville Trophy (for most outstanding film) and the Alfred Hitchcock Cup (for best Fiction Film) at the 1952 Scottish Amateur Film Festival.

A workplace robot, AUTO, transforms into a killing machine when he discovers he will be replaced by a more efficient model. AUTO fears being terminated and will stop at nothing to prevent his own destruction. The human employees must band together to stop him before it's too late.

In 2035, where robots are commonplace and abide by the three laws of robotics, a technophobic cop investigates an apparent suicide. Suspecting that a robot may be responsible for the death, his investigation leads him to believe that humanity may be in danger.