Some scenes, however, fall off the humor-horror fence onto the comedy side. The best example of this is Abby's performance of the soulful "My Soul is a Witness" in the church choir. The problem is, Carol can't sing! Another character mentions her "angelic voice." Apparently the angels live in her sinuses! Then there's the use of fried chicken as a constant theme and Juanita Moore's sage pearls of wisdom about "lovin' a good man."
The performances range from passable to quite good. The best comes from the always dignified, commanding William Marshall as the exorcist. Paula Henderson's main theme, "Will We Find Our Tomorrows," is memorable, as is most everything else about the movie. Though it's often silly, Abby is never dull.
Trivia: Made for $500,000, Abby was a substantial success, grossing $9 million during its month in theaters. After that month, Warners sued and profits were frozen. Director William Girdler died two weeks after the suit was settled and never saw a dime.