In a Jewish Orthodox village in Israel, Tamar, a twelve-year-old girl, prepares for her Bat-Mitzvah which will take place on Passover. She is convinced that she is impure and becomes obsessed with cleaning herself. To make matters worse, her only friend, Rachel, lures her into sinful mischief: peeping into the Mikveh, turning a light on during the Sabbath, and daring to secretly bathe at the Mikveh when Tamar gets her first period. Will Tamar succumb to her fears? A dark and unflinching portrayal of Obsessive-Compulsive Disorder and the inner turmoil of an adolescent girl.