Struggling and desperate, a man succumbs to the devilish persuasion of his roommate. To make rent, he agrees to a sordid deal: his girlfriend, a sweet yet fiery redhead, will service his flatmate in exchange for cold hard cash. The girl, unaware of the arrangement, arrives home from work, greeted by the sinister grin of the waiting roommate. She's confused, then furious, but ultimately aroused by the taboo situation. She begins to pleasure him, her skilled mouth and hands driving him wild, while her boyfriend watches, torn between loyalty and necessity.