In the grimy underbelly of the city, a weathered streetwalker, known only as Mama, spills her guts to us. Her eyes, hooded and heavy with years of hard living, light up as she recalls her favorite tricks. She describes, in vivid detail, the art of the street blowjob, her voice husky with the memory of eager cocks and hungry mouths. She laughs, a sound like gravel, as she shares her best pick-up lines and how she makes clients beg for her services.