Episode 1 - An Invitation
Justine is excited and curious to be at the dinner party, also confused. Justine gambles with Glozell and Tim. She is scared during Shane's death. Justine goes with Tim, Sierra, and Andrea to the library. Justine is even more scared when the car blows up with the dynamite placed under oneof the tires.
Episode 2 - The Ungodly Machine
Justine uses the spirit board, which spells out "BOOKS". Justine goes with Matt, Lele, and GloZell to find the fire clue. Justine votes for Andrea to go into the basement. Justine is chosen by Andrea to help aid her through the machine. Justine doesn't take her gloves off during the ice water part. Justine doesn't save Andrea. Justine says Andrea maybe should have gone. The group is surprised by what Justine says.
Episode 3 - Buried Alive
Justine goes with Joey and Eva to get Caroline's scarf. Justine is scared during the seance, revealing that she doesn't like being locked in a room without a way out, meaning that coffins are not something she wants to see. Justine goes with Sierra, Lele, and Matt to get the key. Justine finds out the music box is playing a song, and points it out to the group that the song it's playing is what they need to replicate on the piano in order to retrieve the key to the chain. Justine is scared when they unbury the coffin and when the group finds out they must bury one of them alive inside of it. Because of her reaction, much of the group believes she may be in league with the evil of the house. Joey tries to convince Justine that he's not going to let her go inside it and it won't happen to her. Justine, along with Joey and Matt, vote for Tim to be buried alive. Justine's name is drawn, she tries running. Marvin, the grounds keeper, grabs her. The group carry her back, and bury her, except for Joey. He is the only one who doesn't help bury her alive. Justine is crying and screaming hysterically, but stops, meaning she was sacrificed to the claws ritual, reversing it, exposing the artifact.
Trivia: Her death is widely considered by the fandom to be one of the saddest, if not THE SADDEST, deaths in the show to date.