Un ange passe (1997)

Un Ange Passe (idiom: "used to indicate that one has noticed a long silence, especially a pause in a conversation") is a science fiction about a girl who survived after a nuclear fallout at the end of 20th century. She tries to communicate with others by using a future gadget, but she misunderstands the contacts from others as a delusion and makes an imaginary character in her mind.