Charlie Lamb doesn't know what she's letting herself in for when she borrows her husband's bike and leathers for a joyride. When the bikers of the Spirits gang see her wearing their colours, they claim her as their own, making her their virtual sex slave. Then Charlie crosses the leader of rival gang the Diablos, becoming their naked captive. In the power of these men, she soon discovers an unexpected penchant for rough sex, as well as for the cruel punishments the bikers mete out to her.