Under the cloak of night and the guise of anonymity, city dwellers surrender to their carnal urges in the most public of spaces. A nervous hand dips into a pants pocket, stroking eagerly as eyes dart around, hoping not to be caught. A woman leans against a cold wall, her free hand working feverishly beneath her skirt, her breath hitching with each stroke. Their faces a canvas of lust and fear, these public masturbators teeter on the edge of discovery, their exhibitionism a high-stakes game of cat and mouse.