The Quare Fellow (1967)
Quite the pleasant surprise. Patrick McGoohan is subdued, but always interesting, as a young, idealistic prison guard who gets involved with the wife of a quare fellow, or condemned man. New evidence comes to light and McGoohan’s pro-death penalty stance begins to shift. The Quare Fellow is adapted from a Brendan Behan play, but loses much of its stage trappings in Peter Hennessy’s cinematography.

The Prisoner as warder

Never watched this one – convinced to, though.
Keep up the great reviews.