Four strangers, hidden behind partitions, engage in an anonymous threesome at a public ATM, their moans masked by the hum of the machine. A blonde woman, her short skirt riding up, straddles a mystery man as another woman, brunette and curvy, kneels before them, eagerly servicing the faceless partner. The ATM spits out cash, ignored as the trio loses themselves in the heat of the moment, their bodies glistening in the dim light.