This is a very good, intelligently scripted film. The cast comprises three people mainly and contains many long conversations. For such unrelenting dialogue, most of it one-note, nearly 100 minutes is far too long. Shorn of twenty minutes, things would be so much more effective.
Having said that, the acting on display is excellent, with the intruder suggesting a number of possibilities that remain largely unexplored, leaving the implications to the audience. The ending, for example, is largely open to question.
Filmed in cold black and white, and featuring some memorable haunted-house imagery, often beautifully lit, ‘The Righteous’ is unquestionably a fine film, and although the attention wandered a little once or twice, I ended up enjoying it a lot. My score is 7 out of 10.