Damien Thorn is dead, but his prophecy is reborn in a mysterious girl named Delia, who is adopted by two attorneys, Gene & Karen York. When Karen realizes her baby was born under suspicious circumstances, she hires a private investigator to find Delia's real parents. A series of bizarre accidents occur, and Karen begins to suspect everyone of conspiring against her as she unravels the truth about her baby.

When the Vatican observatory priest sees the appearance of a comet, the Church is sure that it confirms the eve of the Armageddon. Meanwhile, the USA President's godson Robert Thorn is informed in the maternity in Rome by Father Spiletto that his wife Katherine has just lost her baby and she had troubles with her uterus and would not have another pregnancy. Spiletto suggests Robert that another just born child that lost his mother could be the substituted for his son, and Robert accepts the child and gives the name of Damien. Robert is promoted to ambassador in London after a tragic accident. When Damien's nanny commits suicide in his birthday party, a substitute, Mrs. Baylock, comes to work and live with the family. Along the years, Katherine realizes that Damien is evil, while Robert is contacted by Father Brennan, who tells him that Damien is the son of devil. When the priest dies in a bizarre accident...

Omens and concepts of good vs. evil have no place in Maggie O'Connor's well-ordered, practical universe...