A teen with a reputation for telling lies and creating trouble witnesses her new stepmother murder a man in a vacant parking lot. Now, she must convince her mother to believe her story before she enacts her plan to destroy her family.
Amidst her ongoing struggle with cancer, Betty and her partner Mark embark on a final journey with the intent of carrying out a suicide pact. Initially united by love, impending doom strains their bond, turning them against each other.