April 3, 1979
The Darker Side of Terror is a 1979 American made-for-TV sci-fi horror film directed by Gus Trikonis. It follows a disgruntled biology professor (Robert Forster) who undergoes a secret cloning experiment, only to find that his double escapes and attempts to replace him in his own life—and in his wife's affections.
Storyline
When a scientist at a research lab is passed over for a promotion, he creates a clone of himself to attempt to seduce the wife of the man who got the job.