Apulia, 1959: Women in white dresses dance ecstatically in a small chapel. They jump around, roll on the ground, some even climb the altar. They are said to have been bitten by a spider. Their dancing mania requires a ritual exorcism with music. Pictures like these inspired Italian anthropologists to travel to southern Italy. Equipped with tape recorders, film and photo cameras, they tracked down the phenomenon of tarantism.

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