Whether you're a believer or not, religious experts say exorcisms are happening more and more.
Pope Francis often speaks about the devil in his morning homilies, and he did so again today ahead of the All Saints Day and All Souls Day.
"This generation, and many others, have been led to believe that the devil is a myth, a figure, an idea, the idea of evil. But the devil exists and we must fight against him," the pope told faithful gathered for Mass at St Martha's guesthouse where he resides.
This year, the Vatican dedicated a group of 250 priests from around the world to perform the ancient rite of casting out demons. The Vatican's chief exorcist told a Vatican newspaper that he has casted out as many as 70,000 demons.
Catholics describe exorcism as the eternal battle between good and evil and a fight for souls on earth. To them, it is a spiritual war where demons possess the living, giving them dark powers.
"Demons are fallen angels, evil spirits," said Sister Madeline Grace. "The devil is using their physical powers in ways they never had before."
Exorcism is a topic that many Catholic priests will not talk about, but one in Gary, Indiana spoke to Eyewitness News.