Conjoined Antichrist Twins (Damien: Omen II AU)

Richard and Ann Thorn have taken their 13-year-old conjoined twin nephews, Damien and Damon, into their Chicago home following the death of Richard's brother seven years earlier. The Thorns love the twins, whom they are sending to military school, but not everyone is so sanguine about their presence. Soon after Great Aunt Marion expresses concerns about the boys, she dies suddenly and unexpectedly. And she is certainly not the last.