Alternate versions

The uncut version is rated R21 in Singapore. Two scenes needed to be trimmed to secure an NC16 rating. First is the body dragging scene where the head slowly detaches itself from the torso. Next is the scene where the killer graphically removes a pole that is jammed into a female victim's head.

The DVD features an alternate opening: A young woman, Jennifer (Emma Lung), (the woman who is sculpted into Miss Ambrose) is stranded on the road after her car breaks down. As she calls a towing company, Bo's truck drives up. She tries to signal him, but gets no response. Then, the truck speeds up. Jennifer tried to run, but Bo grabs her by the neck and throws her face-first into her windshield, instantly killing her.

Two versions are available in Germany: the uncut version with a "Not under 18" rating and an edited version (with a "Not under 16" rating) which misses ca. 3 minutes.