This summary provides the key details from the document in 3 sentences: Giovanni found a secret door in his room that led to a poison garden where he met and fell in love with Beatrice, but he discovered that he and Beatrice were both poisoned by her father Dr. Rappaccini's experiments. Despite Giovanni obtaining an antidote from Professor Baglioni, Beatrice died after drinking it, as Rappaccini had intended to keep her isolated in the poisonous garden forever. The story explores themes of scientific manipulation of nature, religious ambition, and the corruption of the natural world.