I think its was made during the ’80s and possibly the song ‘Every breath you take’ was used.
The movie shows an actor getting stalked by a female obsessed by the character he’s playing in a series on TV.
At the end of the movie, the actor makes his character die and show the scene to its stalker to make her stop harassing him.
“Obsessive Love” (1984)
Quote from IMDb:
“A woman tries to create a relationship with the soap star who is the object of her obsession.”
If you think that this is the movie you are looking for, then please select my answer above as Best Answer, there is an option for that.