Crispian is a hidden major antagonist in You're Next.
Biography[]
Crispian is the boyfriend of Erin Harson and a member of the wealthy and well-off family of the Davisons. Together, Crispian and Erin went to his family reunion held at the family's country home on Edelweiss Drive, where Erin was excited to meet his family. Unbeknownst to her, Crispian, his brother Felix, and Felix's girlfriend Zee hired three hitmen to kill everyone except Erin so they could inherit the family's large fortune.
During the dinner, Drake makes fun of the fact that Crispian was fatter when he was younger and also made fun of how he and Erin met. While they are arguing, Tariq, Crispian's sister Aimee's boyfriend, sees something through the window and is shot in the head with a crossbow, shocking the entire family.
Erin starts instructing everyone to use chairs to cross windows. Despite this, Drake is still shot in the back when protecting Kelly, his wife.
While debating over who should run out and call for help, Aimee decides to go. However, right as she exits the front door, her neck is caught on a garotte wire, creating a deep cut, causing her to bleed to death.
While the family, especially Aubrey, Crispian's mother, they put her to bed, right before she is killed. The family hears her screams and Paul, Crispian's father has a breakdown, Kelly goes to check on the body before she notices the assailant and tries to run but is eventually caught and killed.
After Crispian and Erin pull Drake back into the house, Crispian decides to run out and get help, promising to her that he will return.
Crispian, not knowing that Erin had already killed Felix and Zee, calls Felix and Erin picks up the phone but does not make a sound, causing him to think Felix is angry with him, revealing to Erin that he was also a part of it.
Death[]

Crispian stabbed by Erin
When he returns, instead of seeing Felix and Zee, he sees a bloodied Erin and tries to convince her she was never meant to die and tries to entice her by talking about how much money they would have, but Erin instead killed him by stabbing him in the neck and the eye.