The Rapture is a high-stakes thriller which crackles with danger. Set in a heatwave, with protestors on the streets, forensic psychologist Gabs Fox starts a new job at a high-security psychiatric hospital where she meets 17-year-old Bethany Krall. Bethany was convicted of murdering her mother but claims she is innocent. She is estranged from her father Leonard, who is the charismatic leader of an influential religious movement.

Bethany tells Gabs that she has psychic powers and can predict the future - but what will it take for Gabs to believe her? And if Bethany didn't kill her mother, then who did?