This French thriller begins with a flashback to a small village dance where a six-year-old girl is kidnapped and killed. Seventeen years later the murder remains unsolved. The girl's parents Caroline and Chris have gone on with separate lives Caroline remarried and had another daughter while Chris became an alcoholic. The two are thrown back together when each begin receiving strange messages that imply their daughter has returned from the dead for vengeance. They contact a police detective (the lover of Caroline's best friend) who finds the case intriguing and decides to reopen it. Unfortunately, as soon as he begins questioning the old suspects, people begin to die.

Interspersed with jokes, visual puns, and philosophical discussions, the story follows the attempts of a girl who has spent the last year living outside her native Switzerland to rekindle a former love affair. When her immature young friend fails to demonstrate the requisite interest, she takes up with someone the boy disapproves of. When the boy kicks the man, the man leaves both the boy and his erstwhile ex-girlfriend to their own devices.

A young Swiss couple, Vincent and Françoise, plan to leave Geneva and settle in Africa: a friend of theirs living in Algeria promises to give them a job there.