Absolution

Two Catholic boarding school students (Dominic Guard and Dai Bradley) embark upon a carefully calculated campaign to drive their hated headmaster (Richard Burton) insane. The boys launch their scheme by cooking up the most bizarre and depraved of imaginary sins, then recite these infractions in the Confessional. This sadistic little game gets wildly out of hand, resulting in murder. It's a toss-up as to who is the most repulsive character; the headmaster or his two charges. One of a long line of 1970s stinkers barely redeemed by the presence of Richard Burton, Absolution was not released until 1988, long after Burton's death.