A marital happily-ever-after has an aftermath in the millennia-old tragedy of Euripedes’s Medea. The story goes like this: After all that his wife has done for him, the husband abandons her for another woman. In an act of shocking revenge, the eponymous wife slaughters their children and his betrothed.

Those who studied the ancient Athens play will know the beats of director Simon Stone’s contemporized take at the Brooklyn BAM Hudson Theatre and feel uneased at the pre-show sight of…