Classic TV - One Step Beyond - "Person Unknown" (1961)

In Mexico, an escaped convict hides out in a monastery. Unfortunately, it is on the night when the ghost of an Aztec warrior is said to roam the halls. When a murder is discovered later that night, he must prove that he not only didn't commit the murder, https://www.imdb.com/title/tt0507800/plotsummary?ref_=tt_ov_plbut that it was in fact committed by the ghostly warrior.

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