A plain, unremarkable college girl, hoping to break out of her shell, attends a party she's been invited to. There, she finds herself in a bizarre world of mixed men and women engaging in wild orgies... She tries to leave but can't find the right moment, and ends up staying longer than planned. Then, she too falls victim to the lewd temptations! "This wasn't supposed to happen..." she thinks, but as her clothes are stripped off and her sensitive spots are stimulated, she's dragged into a mire of pleasure...