Allie Jones has placed in the newspaper an announcement that she is looking for a roommate. It was from this moment that the most terrible nightmare began in her life. The ad responded to a young girl named Hedy - modest and shy, she immediately liked the hospitable Allie. She decided to take Hedy to her apartment. The girls immediately found a common language and quickly became real friends who share clothes, spirits and the most intimate secrets. Hedy was so enthusiastic about Allie that she wanted everything to look like her. After a while, this obsessive desire starts to scare Allie and the girl understands that something is wrong with her neighbor. And Hedy is ready to go very far to achieve similarity with his girlfriend.