Musical lover Riley has big aspirations to become a director on Broadway. Crucial to this plan is to bring back her high school’s spring musical, but when Riley takes her mom’s car without permission, she's grounded and stuck with the worst punishment: spending her after-school hours working at her dad’s game shop. Riley can't waste her time working when she has a musical to save, so she convinces Nathan—a nerdy teen employee—to cover her shifts and, in exchange, she’ll flirt with him to make his gamer-girl crush jealous.

Jay is living his best life at Karloff Country, one of the world’s most famous resorts. He’s got his family, his crew, and an incredible after-school job at the property’s main theme park. Life isn’t so great for the rest of the world, but when people come here to vacation, it’s to get away from all that. As things outside get worse, trouble starts seeping into Karloff. First, Jay’s friend Connie and her family disappear in the middle of the night and no one will talk about it. Then the richest and most powerful families start arriving, only... they aren’t leaving.

Mars has always been the lesser twin, the shadow to his sister Caroline's radiance. But when Caroline dies under horrific circumstances, Mars is propelled to learn all he can about his once-inseparable sister who'd grown tragically distant. Mars's genderfluidity means he's often excluded from the traditions—and expectations—of his politically connected family. This includes attendance at the prestigious Aspen Conservancy Summer Academy where his sister poured so much of her time. But with his grief still fresh, he insists on attending in her place.

Penny's trying to forget about her ex, Nash. His father was arrested for the brutal murder of four teenagers on Devil's Night last year. Penny's parents have forbidden her to have anything to do with Nash or his family. It's hard not to think of what happened as spooky season gets underway—but she's trying.

Tonight, Riverview Theaters is closing forever, the last remaining business in a defunct shopping mall. The moviegoers have left, and Jo and her six coworkers have the final shift, a shift that quickly takes a dark turn. First a stranger arrives with a chilling accusation. Then the power goes out and their manager disappears, along with the keys to the lobby doors and the theater safe, where the crew's phones are locked each shift. The crew's tension turns to terror when Jo discovers the dead body of one of her co-workers.