mystery play
US /ˈmɪs.tər.i ˌpleɪ/
UK /ˈmɪs.tər.i ˌpleɪ/

1.
obra de misterio, misterio
a medieval drama based on biblical stories, especially the life of Christ or the saints, performed in churches or on movable stages
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The town's annual festival includes a traditional mystery play.
El festival anual de la ciudad incluye una tradicional obra de misterio.
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Scholars study mystery plays to understand medieval religious theater.
Los eruditos estudian las obras de misterio para entender el teatro religioso medieval.