La critique de Roger Ebert
It's the voice that does it. The flat Michael Caine delivery that always seems to imply there are more angles than meet the eye. Caine plays the narrator and hero of "A Shock to the System," and as he dryly describes his progress up the corporate ladder and his steps toward a refurbished love life, we realize that this is the voice of a man who thinks he can get away with murder, and may be right.
In the movie, Caine is Graham Marshall, next in line to head the department in the big New York ad agency where he works. But then a smarmy pest of a younger man (Peter Riegert) gets the job. Meanwhile, Caine's life on the home front is an unendurable round of boredom and domestic psychological torture, engineered by his wife (Swoozie Kurtz).