خلاصه داستان : After losing her mother in an accident, a teenager and her father welcome a distant cousin into their home. Hoping to claim the family as her own, the psychopath hatches a devious plan to recreate the prom she never experienced.

After losing her mom in an accident, a teen and her father welcome a distant cousin named Sienna into their household. Hoping to claim the family as her own, the psychopathic Sienna hatches a devious plan to recreate the prom she never experienced.