Carolyn (Alecia "Pink" Moore) was the main villainess of the 2007 film Catacombs. She was the sister of the film's main protagonist, Victoria, and the movie opened with the former sending the latter a postcard inviting her to visit her in Paris. Soon after Victoria's arrival, Carolyn began poking fun at her sister for her chronic anxiety, which she was shown to take medication for.
Carolyn also introduced Victoria to her friends and announced that they were going to a rave that night—which was being held in the Catacombs of Paris. During said rave, Victoria and Carolyn went to the VIP room so that the former could get water in order to take her medicine after she began to have an anxiety attack, and it is there that the hose of the rave, Jean-Michel, told Victoria a legend about a killer who went after people who became lost in the Catacombs. Victoria then tried to return to the rave, followed by Carolyn, only for the sisters to quickly become lost. As they attempted to find their way back, Carolyn and Victoria were attacked by a man in a goat mask, who appeared to murder the former, forcing the latter to flee for her life from the masked murderer.
Eventually, after becoming trapped in the Catacombs after the police ended the illegal rave and also being further chased and tormented by the goat masked man, Victoria killed her pursuer by striking him with a pickaxe. It is then that Carolyn and her friends arrived and comforted the shocked Victoria, revealing that she had been the victim of an elaborate prank set up by her sister and her friends. Carolyn also revealed that while she had been planning to find Victoria when the police broke up the rave and she and her friends were separated, she still believed that her traumatizing prank would help Victoria "get over her issues," showing callous disregard for her sister's mental health.
Carolyn then revealed that Jean-Michel had been the masked man chasing Victoria, and was shocked when she saw that she had killed him. As Victoria bemoaned her actions, the evil Carolyn angrily screamed at her sister, blaming her for Jean-Michel's death and viciously stating that she hated her. Carolyn's verbal abuse eventually causing the traumatized Victoria to snap, leading her to turn heel and kill her sister and also her co-pranksters by striking them all in the head with the pickaxe.