Between 1976 and 1977, David Berkowitz murdered six people and wounded seven others in a series of attacks that terrorized New York City. He was dubbed the .44 Caliber Killer by newspapers and was self-titled the Son of Sam in a letter found near one of the shooting victims. After Berkowitz was finally arrested, in part due to an unpaid parking ticket, he cited both a Satanic cult he was supposedly a member of and his next door neighbor’s dog that was possessed by a demon who commanded him to go out and kill. This is Berkowitz’s story, as recounted through the imagination of Ulli Lommel.