Yang's masterly film keeps numerous plot strands going in parallel, finds a high level of interest and suspense in all of them, and dovetails them together into a composite picture plausible enough to make you cry and shocking enough to leave you gasping. The characters span the full urban spectrum: a research scientist jockeying for promotion, a bike-gang hoodlum on the run from the cops, a woman novelist looking for a painless way to end her marriage. Yang sees each of them clearly and with consummate honesty, and notes how their taste in clothes and decor serve to underline their personalities and betray their histories. Neither sociological essay nor soap opera, it's an intensely cinematic movie, finding mystery, pity and fear in every life it scans. The title character is a girl delinquent whose prank phone calls spark off crises in the lives of other characters. But the film suggests that we all have our ways of 'terrorising' each other, and that we'd all like our lives to be as coherent and resolved as fiction. Yang reaches high, and his aim is true.