A horror film studio loses its main star when scream queen Weatherly Adams is murdered after a night of filming. The CSI team moves in and questions a number of suspects, including Weatherly's former boyfriend, Oliver Zarco, a one-time film crew member who was recently disfigured in an on-set accident. The two studio owners, Vincent and Mason Lafoon, also come under scrutiny when Mason sets Vincent up to take the fall for the murder.
As Brass interrogates Mason, he confesses that Weatherly's death was really an accident--she tripped and fell on a pipe, impaling herself. Stanley Vespucci, head of production, insisted "the show must go on" and faked the murder so his company wouldn't be accused of safety violations. But Dickie Jones, a diminutive actor who has taken a shine to Catherine, turns up murdered at the studio after witnessing Weatherly's accidental death. Ronnie Lake discovers his body when she returns to the scene to locate her missing cell phone. She ends up involved in her own horror movie scenario, finding movie director Zach Putrid shot by Stanley Vespucci, who also killed Dickie to keep him quiet. But Ronnie is rescued by an unlikely hero: Oliver Zarco, dressed in one of Weatherly's finest dresses and a blonde wig, who takes out Stanley with an ax.