Gemma, Leah, Michelle and Susan are best friends and have been since high
school. Gemma may be a little more domesticated, Michelle a bit wilder,
Leah a bit more responsible and Susan and bit more... well, Susan, but at
heart they are the same four girls who've spent all their time together
since Year 8.

Brett and John are the absolute opposite to these girls. Having met in
prison for B&E and sexual assault respectively, they have formed a bond
that couldn't be cut with an axe. John has an appetite for women and booze
and Brett has an appetite for destruction, and they join forces in the
senseless abduction, torture and murder of countless people.

Enter William. After originally having picked him as a target, the boys
start to feel sorry for the poor, abused, neglected loner, and effectively
take him under their wing as they channel his frustration and rage into
what they believe are "healthy" pursuits, as William responds by giving
them more direction in their choice of victims - anyone William feels has
wronged him in some way. This covers everyone from the school principal
who allowed him to be bullied, to the random girl who raised a finger in
response to Johnny's lewd comments from a car window one night.

Which brings us back to our lovely heroines. After enjoying a fabulous
night out in the city, the girls call a random guy from Michelle's phone
to give them a lift home. This turns out the be William, a guy from high
school who has long harboured a crush on Susan, and who agrees to give
them a lift - but only if they can all fit in the car with his "friends".

What starts out as a standard ride home becomes hell on wheels as Michelle
and Johnny's equally volatile personalities combine to create
conversational napalm. After the situation escalate, punches thrown and
knives drawn, William realizes he has no choice but to pull the girls,
including the unrequited love of his life, into a favorite game played by
Brett, John and himself, of which there is one rule. Kill or be killed.