Jan Egleson directed A Shock to the System, which Andrew Klavan adapted from a Simon Brett novel. The cast includes Michael Caine, Elizabeth McGovern, Peter Riegert, Will Patton and Swoosie Kurtz; Gary Chang composed the music and Paul Goldsmith handled the cinematography. Graham Marshall (Caine) finds himself passed over for advancement yet again, and his critical wife (Kurtz) doesn’t help matters. An argument at a train station leads to the unintentional death of a homeless person, and Graham escapes consequences, sparking some dark ideas—as he puts it, a “devilish thought.” Michael Caine has openly said that he's taken roles simply for financial reasons or to fund projects. His track record is uneven; roughly one good film and performance out of every ten are balanced by less impressive work. However, when he’s on his game, he delivers exceptional performances that make his weaker films more palatable. He made Bullseye the same year. A Shock to the System is an overlooked entry in Caine's filmography, a cleverly designed dark comedy where Caine smoothly transitions through a range of emotions. He portrays a downtrodden man transforming into a cold-blooded killer with a subtle intensity. There are moments of humor sprinkled throughout—Caine is naturally funny—and he even has a younger romantic interest played by the charming Elizabeth McGovern. It's worth mentioning that Graham’s love life improves considerably after the incident. The film benefits from a compelling antagonist who challenges viewers' feelings and moral judgments, making it worthy of more attention and deserving of renewed consideration. A very good movie, featuring a superb performance by Caine. 9/10

Source on TMDB