The sisters rather enjoy being introduced to modern technology, especially TV and Internet lessons from friendly Jonathan. Rebecca, who befriends him as fellow musician, plans to achieve social status by joining the 'popular girls', but unlike school stud David, who would give her a chance, head bitch Chrstine devices a mean hazing test, 'haunting' strict arts teacher Sinclair out of her mind. The sisters decide to use their ghost powers, but get locked in. Jonathan learned so from roommate David, who felt it unfair. Jonathan thus discovers their supernatural powers. The guardian ghosts should banish at least Rebecca, but find a loophole: swearing Jonathan to secrecy with a bond, his prized plectrum.