Inspector Frost retires in a month. He returns to Waverton Manor where, eighteen years before, he failed to solve a kidnap and possible murder.

With a new piece of evidence he re-opens the case which almost ruined him.

This time he finds that the villagers are no longer interested in re-living the past. It becomes increasingly apparent that he is facing a conspiracy of silence and hostility.

But the burden of truth is finally resolved in a series of startling revelations, much to the Inspector's horror and the surprise of the audience.

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