Uma jovem garota mantida em cativeiro por seu padrasto torna-se o foco de uma mulher vigilante.

A group of teens fights for their lives as they find themselves trapped in a fun-house, stalked by a killer clown who won't rest until every last one of them is dead.

Riley wants to rebuild her relationship with her mother and little sister, who are shut-ins due to her sister's illness. When Riley realizes her sister may not be sick, her mother will stop at nothing to keep her daughters with her forever.