When thieves rob the garage sale of suburban mom Marcia, a struggle ensues, and one of the thieves is killed. Unbeknownst to Marcia, the dead thief's sister returns, masquerading as a kind neighbor - with a vengeful plan to destroy M

A group of high school cheerleaders look for revenge after being all betrayed by their boyfriends, but then they discover that their Coach might be the one behind all of their misfortune.

Hoping to win a coveted "camp champ" college scholarship after her mother's death, high school senior Sophia signs up for a summer of cheer and competition, only to find that her spoiled new rival is as dangerous as she is spiteful.