As members of competing volleyball teams, Charly and Anika are adversaries. The teams play pranks on each other every year. When Anika's volleyball partner is found dead, the situation escalates rapidly. With all the indications pointing to Anika, Charly becomes the target of some severe pranks this season. Even Charly's teammates appear to be on to something. Charly's new buddy Becky and the team's intern are the only people she can rely on now. What happens when Charly and Anika find themselves locked in a cabin together and unable to leave?