The deep conversation between a Japanese architect and a French actress forms the basis of this celebrated French film, considered one of the vanguard productions of the French New Wave. Set in Hiroshima after the end of World War II, the couple -- lovers turned friends -- recount, over many hours, previous romances and life experiences. The two intertwine their stories about the past with pondering the devastation wrought by the atomic bomb dropped on the city.

In Paris in the early 1960s, Ronald is a son of a good family, with a carefree, pleasure-oriented life. He is one of the leading figures in the small world of Saint-Germain-des-Prés. Following a trivial parking incident, he meets Arthur, a young man with a straight face who hurts his pride. It is at this moment that Ambroisine, a beautiful young woman, appears... she will be the instrument of Ronald's revenge.

Véronique gives a mathematics lesson to a dunce who answers the prepared questions with disconcertingly sound answers.

Is doubt allowed in love? In this police investigation, feelings interfere with the investigation. While a murder has been committed, the benefit of the doubt as to the identity of the murderer is obviously allowed. Love, jealousy, passion and crime make up the essence of this thriller crime drama.