On her 40th birthday, Rachel is grappling with a looming mid-life crisis and the nerve-wracking task of delivering a speech at her daughter’s Bat Mitzvah. But when a DNA test unexpectedly reveals that she’s only half-Jewish and her beloved father isn’t her biological parent, Rachel’s life is thrown into disarray, and suddenly, she’s embarking on a hilarious journey with her eccentric mother to find out who she really is.