The Scary Quadruplets are a group of 10-year-old quadruplets, two boys and two girls, who live in a haunted house. Their names are Gavin, Brian, Zara and Penelope. Gavin dresses like an emo and almost never smiles. Brian is very sweet and kind, and he dresses like a werewolf. Zara is very mischievous, and she dresses like a vampire. Penelope is really shy, and she dresses like a ghost, having a bedsheet hide her whole body. The quads also have 9 spooky animals living in the house with them.