New York police sergeant Jim Dark is determined that his daughter, Jenny, will be shielded from any knowledge of evil. Consequently, she lives in a dream world, imagining herself to be a descendant of Saint Jeanne d'Arc, but has a loyal friend in reporter Pep Mullins. Her school friend, Adele, also raised by overly protective parents, is ejected from her home when she becomes inebriated after spending an evening with a disreputable young man.