Proof, Paperback

Marcia is sixteen and unhappy. One day, she hears a shout: 'Wannafuck?' Startled, she turns and is confronted by punk girls Lenin and Mao. She's soon beguiled, but the two have little time for philosophical discussions of love: they need proof, and with their own savage logic the duo stage a hold-up in an unforgettable splatter-fest finale.