Diego experiences every 13 year old’s worst nightmare: a birthday party with a piñata! However, Diego and his friends have no idea that the real horror is just beginning! After the party, Diego’s friend, Joel, can’t shake the feeling that the party isn’t over… Something evil has followed Joel home and seems determined to also be part of Joel’s birthday celebration! Will Joel celebrate his 13th birthday…or will this uninvited guest ruin the party…or worse?