Very similar in themes to Woody Allen's Crimes and Misdemeanors.
Tom Wilkinson plays a high powered attorney whose wife Emily Watson engages in an affair with a young heir. During their tryst, Watson accidentally kills her housekeeper's husband. It turns out that the young heir had accused of the housekeeper of theft years earlier, and that it was Watson's magnanimity that was her first opportunity to have employment and dignity again.
A convoluted drama of lies and truth ensue as powerful individuals attempt to manipulate things for their own benefit.
"A young heir threatens a couple's troubled marriage." Starring Tom Wilkinson, Emily Watson, Rupert Everett, Linda Bassett, David Harewood, John Neville. Written and Directed by Julian Fellowes. From UK. 2005. 87 mins.