Earlier this year, "The First Omen" arrived in theaters, offering us a prequel to the 1976 Satanic horror pic "The Omen." In theory, this sounded like a bad idea: a lazy way to cash-in on brand awareness without offering anything new to the horror genre. But surprise, surprise! "The First Omen" turned out to be surprisingly good, especially for a studio mandated horror prequel. It may not have set the box office on fire, but in the sturdy hands of filmmaker Arkasha Stevenson, "The First Omen" was smart, captivating, and most of all, scary. Now, here comes "Apartment 7A," which is following a similar formula: It's another prequel to a devil-themed horror classic, in this case Roman Polanski's "Rosemary's Baby." My knee-jerk reaction was to be skeptical to this entire endeavour, but I was also skeptical about "The First Omen," and that turned out to be a wonderful surprise. Could it happen again?...