As part of a sorority ritual, the pledges and their male companions steal a trophy from a bowling alley, unbeknownst to them it contains a devilish imo who makes their lives a living hell.

<p>　　Special Features<br/>　　Audio Commentaries on Each Film<br/>　　All-New Three-Part Documentary, Sleepless Nights: Revisiting The Slumber Party Massacres<br/>　　Photo and Poster Still Gallery<br/>　　Theatrica…

Special Features　　Audio Commentaries on Each Film　　All-New Three-Part Documentary, Sleepless Nights: Revisiting The Slumber Party Massacres　　Photo and Poster Still Gallery　　Theatrical Trailers　　Editorial Reviews　　All Three Films In One C…

As part of a sorority ritual, the pledges and their male companions steal a trophy from a bowling alley, unbeknownst to them it contains a devilish imo who makes their lives a living hell.