Drusilla's history unfolds in flashbacks scattered among numerous episodes of both "Buffy the Vampire Slayer" and "Angel"; they are not presented in chronological order. In "Lie to Me", Angel explains that, in 1860 when he was still Angelus, he became obsessed with Drusilla, a beautiful young Catholic woman who lived with her parents and two sisters in London. Angelus's sire Darla first discovered Drusilla, and presented her to Angelus as a new possible victim to torment. Drusilla had psychic abilities, and was capable of occasionally foretelling the future, especially tragic situations. However, she believed this to be an evil affliction and wished to enter a nunnery to cleanse herself. Angelus sensed her purity and became obsessed with destroying her, as Drusilla had the potential for sainthood. Angelus first made contact with her by murdering Drusilla's priest, and impersonating him when she went to confession. When she confessed that she believed her abilities were evil, Angelus toyed with her by suggesting she embrace the evil instead of rejecting it. At some later point Angelus tortured and killed Drusilla's entire family, causing her to flee to a convent in Prague. On the day she was to take her holy vows, Angelus made her watch as he killed every person in the convent and engaged in sexual relations with Darla. The trauma of Angelus's atrocities drove Drusilla insane, and Angelus chose to turn her into a vampire, as he considered her a masterpiece, a testament to his talent. Believing death to be a mercy to her at this point, he chose to sire her to make her pain eternal as an immortal.