Big Sister Is Watching You

Phoebe's fed up with her life; parents who have moved on without her, annoying housemates who can't even be trusted to look after her cat, and a so-called "group" of friends that Phoebe's convinced don't want her around anymore. Paranoid, she concocts a devious plan to "test out" how these people would react if she disappeared.

Note: PG-13 on account of violence and some swearing.