Son of Sam plot
It's the summer of 1977, in New York City. A violent killer calling himself 'Son of Sam' infests the streets. He sneaks up to men and women and shoots them with his firearm. When he is finally arrested, he declares to the police that he was listening to the 'Voice of Sam', his neighbor's dog, and also that he was influenced by a satanic cult. Before his sentence, he asks for assistance in his cell from a Catholic priest to convert him from Judaism to a devout Christian. The real name of the killer is David Berkowitz, who is currently still incarcerated in an American prison with no chance of ever being released.