Puglia, southern Italy, around 1400. A convent is invaded by the Tarantula cult, whose fanatical and crazed members desecrate the sacred place by committing obscene and bloody acts.
A pharmacist is murdered, and a woman happens to see the culprit leave the scene. She soon finds herself being stalked by the killer.
Despite mixed emotions, Frederick Winterbourne tries to figure out the bright and bubbly Daisy Miller, only to be helped and hindered by false judgments from their fellow friends.