Time Out says
A welcome antidote to the sexless romanticism of ‘Twilight’, Kusama and Cody’s female-driven horror comedy explores the premise that ‘hell is a teenage girl’. When the far from virginal Jennifer transforms, she simply becomes herself, but more so: her sexual power is magnified, she glows with health after feeding, and her cruel selfishness goes into overdrive. But not even Needy’s sensitive boyfriend Chip (Johnny Simmons) will believe that Jennifer’s body is now the embodiment of evil.
There are weaknesses: Kusama’s set-piece scare scenes aren’t always frightening, Cody’s trademark teen slang is occasionally more forced than arch, and the mysterious psychic connection between Jennifer and Needy is never explained. But by tapping in to the same vein of ‘hormonal horror’ as the excellent ‘Ginger Snaps’, this offers a witty, subversive look at the darker side of teen friendship.