A stranger enters into and forever alters the life of a couple. He claims to be pursued by certain authorities who intend to prevent him from disclosing a secret that only he holds, whence the title. Is he lying, or insane - or is he telling the truth? Who, if anyone, is after him? And what *is* - the secret?

After a psychoanalyst unsuccessfully tries to convince four sisters that they are not 200 year old vampires, the Queen of the Vampires promulgates the cause of the Undead.

Two French girls get lost in the woods and accidentally enter the realm of sorceress Morgana Le Fay - who gives them the choice of either staying young forever as her lovers, or rot in a dungeon for eternity.

Paris, in the 1960s. A series of crimes troubles the public tranquility. On March, 22, 1968, Hélène Picard, a prostitute sentenced to death two years before for several murders, is killed by executioner Louis Guilbeau. Immediately, the violent crimes, similar to Hélène’s ones, go on again. In parallel, Louis is having an affair with the police woman in charge of the investigation… What are the obscure relations hidden behind the executioner and the mysterious killer? Who is this dark man in reality?

Lucille, a paralyzed girl, is the scapegoat of her sister and her cousin Josine and Elisa. During a "game" that goes too far, they accidentally kill the lover of Elisa. Whilst attempting to make Lucille bear the guilt of the killing, they discover the frightful secret that would explain the vegetative state of Lucille.

A discredited police inspector is given a second chance, in the form of a dangerous assignment. Chosen because of his uncanny resemblance to a Lt. Revere, the inspector impersonates him in order to penetrate a group of mercenaries with orders to assassinate its leader.