Those who value balanced brain-chemistry and a regular heart-rate, approach "Female Convict Scorpion: Jailhouse 41" with extreme caution. For within this film lie feral sex, hyper-violence, impulsive lesbian orgies, mock crucifixions. Spoons sharpened into shivs. Eye-melting depictions of the most shockingly jagged DIY abortions. Filmed in colours that tilt without warning from ashen, pale shades into lurid hues, "Female Convict Scorpion: Jailhouse 41" brings the characters from Tooru Shinohara's popular manga to genital-swinging life. The storyline assumes the form of a quest for vengeance by a woman imprisoned - but director Shunya Ito's images and the singular star-presence of Meiko Kaji combine to transcend a common B-film revenge-tale and take on an execution that is unadulterated impact. Although conceived as a follow up to Ito's "Female Prisoner No, 701: Scorpion", "Female Convict Scorpion: Jailhouse 41" can nonetheless be enjoyed and obsessed over as a stand-alone achievement, a unique totem for the annals of 1970s Japanese cine-exploitation. It's in this instalment that full-blown artifice locks horns with psychosexual horror - before collapsing in a pile of offal, wearing the grin of a gassed corpse. Prepare yourself for lock-down.