All kinds of people are waiting in seven different queues. The first person of each queue becomes the last of the next one, thus creating an enormous human line. But at the end of the line, it all begins backwards again.

A former singer and actress, after 12 years of marriage to a famous lawyer, doubts his love. So, to provoke his interest, she allows herself to be flirted with by a former and a current admirer. The wife of one admirer, the mistress of the other, and an admirer of her husband become involved in this romantic game. A pandemonium of misunderstandings ensues...