One night at a banquet, two men and one woman - perhaps company superiors and subordinates - are drinking in a friendly atmosphere. When one of the men stands up, the remaining man and woman begin passionately kissing. The other man returns, unable to hide his surprise, but joins in, and the intense, sensual night deepens. The three then move to another location and escalate their actions. At first, they kiss and masturbate together. But things don't end there, and the three engage in fornication.