And in subsequent episodes, sin by sin, they turn our transgressions into intelligent comic drama, laced with character-building revelations.
The success of Tinker, Tailor, Soldier, Spy also made the case that audiences are crying out for intelligent drama.
Adapted by Scott McPherson - who died young of Aids - from his own play, it may sound maudlin, but it's an admirably restrained, intelligent drama.
The film doesn't solve the puzzle of what makes a man like White commit such hideous acts, but it offers clues and intelligent, effective drama.
Radio Times' Alison Graham wrote, "A tremendous piece of drama; subtle, intelligent, powerful and adult.
It's a well-written, intelligent political drama.
"This is an intelligent and absorbing romantic drama, beautifully mounted, emotionally saturated," says New York 's David Denby.
You might expect this unsettling moment from "Frozen," Bryony Lavery's humane and intelligent drama, to bring to mind a lurid detective movie.
What Richard Did is an engrossing and intelligent drama that throbs in the mind for hours after the final credits".
Avvaiyar was astonished, how a small village cowboy had played such an intelligent drama!