A Shock to the System (1990)

Graham Marshall (Michael Caine) works as an advertising executive in New York. After losing out on a promotion, he sets off for home and ends up accidentally killing a man in a minor scuffle by pushing him onto the subway tracks. No one else witnesses what happens, so he walks away from the scene without repercussions. This is a moment that profoundly changes his outlook, offering him a strange kind of liberation. Before long, he’s considering murder as a way to get what he wants in his personal life and also in terms of his professional ambitions. 

Caine is suitably creepy as a seemingly reasonable man who turns into a killer. Elizabeth McGovern is believable as the naive, admiring girl who ends up getting a little too close to him. And Peter Riegert convinces as the cocky, competent boss who takes the job that Graham assumed was his. 

There’s both a delicious kind of grim black comedy and enough dramatic tension to keep you hooked. The film also makes a point about the difference between the wealthy and the very poor, and between the young and the old. 

The ending isn’t what you might expect, but it does satisfy.