Scream: Brianna Albertson's Nightmare takes place after the events of Scream: The reason Brianna Albertson became a killer. Brianna still have a nightmare about Shaun Webber, a killer from Brianna's past, Shaun still haunts her in her nightmare. Hayley found out Shaun's body when Hayley shot at Shaun in Brianna's Killer from her Childhood, was gone. Hayley, Brianna, Hannah, Belinda, Cami, Ethan and Hayley Mitchell found out Shaun is still alive and Shaun is after Brianna and Hayley.