Snoops in the rooms

One evening, while Cass Windhelm was living the best time of her life, finally talking to her crush and jamming up enough courage to take the first sip of alcohol: her life is turned upside down when her room mate mysteriously disappears from the campus and Cass is left reeling from the shock of being the last person to talk to her. When her new roommate Naya arrives, shy, reserved, introvert - everything that Sienna was not, Cass begins to doubt her sanity for thinking that there could something more to Naya's mysterious demeanor.
or is it?