Ella becomes intensely possessive of Helana, a mysterious girl who looks like her twin, insisting her family adopt Helana instead of letting her stay with Eileen's family who are currently fostering her. As Helana struggles to learn English at their new high school, she secretly takes her three friends—Ella, Eileen, and Roxana—to a spiritual `night school` where they meet her parents and begin learning otherworldly knowledge they'll remember upon waking.