For 13-year-old Cairns high school student, Willy Williams, life is not going smoothly. He has developed a passionate interest in girls, particularly the beautiful and mysterious Petra. But Willy is also bedevilled by temptation and is torn between his desire for Petra, admiration for red-head Barbara, and hopeful lust for Marjorie, his best friend's sister. Worse, Willy has a secret enemy who makes his life a misery, as do the school...