Beth is a shy young woman who has come to the city to share an apartment with her friend, Janet. Janet gets Beth a job at the company she works for and tries to encourage Beth to come out and socialize with their coworkers. Beth declines. But when Janet turns up missing and Beth fills in at Janet's job, she meets Janet's friends and all is not as it seems. Beth must find out what happened to Janet and see if she can prevent the same thing from happening to her.