Jessica and Lucious were lovers that died when the Lady Anne sunk. Before he died, Lucious swore allegiance to the Water Demon in order to gain freedom 100 years after death. Jessica, however, didn't swear allegiance to the demon and instead came back as a ghost 100 years later to inform the Ghostbusters. When the Water Demon double-crossed the souls of the people that died during the sinking of the Lady Anne, Jessica wanted the demon to take her and spare Lucious, who in turn wanted the demon to take him and spare her. All of the souls were freed after the Water Demon was defeated by the Ghostbusters.