High school junior Cassie Adler just wanted the bullying to stop. She thought gaining a spot on the varsity soccer team would whip up instant friends, but it isn't until the popular girls need Cassie's help that they acknowledge her presence. Cassie reluctantly agrees to participate in a prank that turns sour fast. Now with blood on their hands, she and the popular girls race to cover their tracks. But something savage knows what they've done, and it's hungry for revenge. Can Cassie redeem herself before it's too late, or will her deadly sins ketchup to her?