The film Hell Baby talks about her husband and wife. Jack is an optimistic person, and Vanessa is expecting her first child. They bought a house in New Orleans and are moving into it to live. True, the house is a bit old, but it is in a quiet place, and they think that they can live together happily there: they will celebrate a housewarming party, get to know their neighbors, and arrange their life. But soon all their dreams are crumbling, because something dark and evil has settled in the house. Now, instead of raising a child, they only think how to escape from him. For this they will have to call the exorcists from the Vatican itself. Will they be able to help the couple and how will they do it?