Dolores begins as a sacrifice offered to Satan by the satanic cult, the Disciples of the Black Mask, during a ritual in a desecrated church. Dracula interrupts, mistaken for Satan, and takes her away. He brings her to safety intending to turn her into a vampire but finds himself unable to proceed due to developing genuine feelings of love for her.

Initially believing Dracula is Satan, she later accepts his true identity as the vampire ruler of Transylvania. Their relationship deepens, leading to marriage and the birth of their human son, Janus. Through this relationship and motherhood, Dolores regains self-esteem and emotional stability.

Tragedy occurs when the cult leader attempts to kill Dracula but accidentally shoots and kills Janus. Devastated, Dolores visits Janus's gravesite intending suicide. During this act, she begs heaven for forgiveness, resulting in Janus being resurrected as an adult angelic figure with a divine mission to destroy Dracula.

Dolores pleads with Janus not to kill his father, but he feels compelled by his heavenly duty. After Dracula's eventual death at the hands of vampire hunters, Janus returns to Dolores one final time before ascending to heaven. As he departs, an infant version of Janus appears in her arms.