Trina secretly throws a big house party at her parents' six bedroom home while they are out of town.
Things at the party are fired up, with partygoers stretched from wall to wall, until the party comes to an abrupt end.
Trina believes that everyone has left for the night, but she soon discovers that not everyone has left her home.
There is someone still there.
Her life takes a deadly turn, putting her at odds with a deranged stranger who just won't leave her house or her alone!