ACE Entertainment has acquired the TV rights to Suzanne Young’s bestselling horror novel, “In Nightfall.” The adaptation will be executive produced by Paul Kim and Kendyll Boucher. The novel, which has been compared to “Lost Boys” and “Buffy the Vampire Slayer,” follows Theo and Marco as they spend the summer in a small town where they encounter enigmatic girls with a dark secret. ACE Entertainment has a proven track record of adapting YA works for the screen, including the “To All the Boys I’ve Loved Before” franchise. Suzanne Young has published over 20 novels, including the bestselling “The Program” series.