How dangerous a fangirl can be? All she does is dedicating her life to stalk her favorite singer Zack. Her regular day is just watching Zacks videos, listening to his songs... Untill a group of people who calls themselves ''Shadow'' realizes how much she knows about Zack. This innocent looking Zack and Shadows unfinished business will turn our fangirl Olivias life a mess. Now, she is not a fangirl anymore. She is a secret weapon.