The ‘Paranormal Activity’ Stage Show Has Audiences Screaming and Laughing. Can It Be Broadway’s Surprise New Hit?

Broadway producers traditionally gauge audience reaction by warm applause at the end of Act 1 or a standing ovation during curtain call. But “Paranormal Activity” producer Simon Friend laughs while recalling the profane reaction of a man scared for his life while watching the play: “Fuck! Fuck! Fuck! Fuck!” “Paranormal Activity,” which opens at the…