Their mother forced identical twins Haylee and Kaylee Fitzgerald to live their entire lives in sync. They didn't fight back-- until high school. One night, in the darkness of a movie theater, Haylee reveals that she's leaving to meet up with someone she knows from online. Feeling ill, she convinces Kaylee to go in her stead. When the credits roll and Kaylee is nowhere to be found, Haylee wants to find her sister. Still, for the first time in her life, she's free from her twin. Which, really, isn't so bad... is it?