Vincent goes undercover as an operative for the sinister private security firm Greydal. He is teamed with Dianne Vaughn, an evil, very glamorous female assassin who suspects that Vincent is not on the level. It is later revealed that Dianne, a killer for hire, is a mass murderer.
During a robbery for Greydal, Dianne forces Vincent at gunpoint to prove he's really "one of them" by killing the security guard in cold blood. Reluctantly, Vincent strangles the man. But Vincent's wife, DHS agent heroine Cat Chandler, arrives on the scene. Dianne goes to confront her, while Vincent desperately attempts to bring the security guard he just killed for Dianne back to life (eventually succeeding in doing so). Cat manages to kick the gun out of Dianne's hands and fights her - Dianne is bigger and stronger and gets on top of Cat, trying to knife the heroine to death; but Cat manages to keep Dianne's knife hand away from her and using her legs, catapults the villainess into the air. Dianne then falls onto her own knife as a result, killing the sadistic villainess.
- Dianne Vaughn was Beauty and the Beast's final villainess.
- AnnaLynne McCord's other villainous roles include a carjacker from 2005's Transporter 2, evil assassin Sarah Miller from 2015's Watch Your Back, villainous madam Melanie Warner on Secrets and Lies, and sadistic robber Liza from 2017's 68 Kill.