Daimon and Ana Helstrom are the son and daughter of a mysterious and powerful serial killer. The siblings have a complicated dynamic as they track down the terrorizing worst of humanity — each with their attitude and skills.
When a cheer squad practices their routines on Halloween weekend in an abandoned school, they are picked off one by one by an unknown killer.
Aurora finds a member of her crime buff group, the Real Murders Club, killed in a manner that eerily resembles the crime the club was about to discuss. As other brutal "copycat" killings follow, Aurora will have to uncover the person behind the terrifying game.
