An industrial tow truck driver suffering from insomnia returns to his childhood home after the untimely death of his father, to discover that a paranormal presence has been living in the house and haunting the sacred land it was built on.
A social worker, still reeling from the loss of her architect husband, investigates the eccentric, psychedelic Wadsworth Family, consisting of a mother, two daughters, and an adult son with the apparent mental capacity of an infant.
Many, many years ago, the beautiful Medusa was severely punished by Athena, the virgin goddess, for the loss of her purity. Today, Mariana belongs to a world where she must do her utmost to keep up the appearance of a perfect woman. In order not to fall into temptation, she tries hard to control everything and everyone around her. However, the day will come when the urge to scream will be stronger than it ever has been.
Leopold Kroner, formerly of Colby Enterprises, is released after five years in prison for embezzlement. Andrew Colby, claiming that Kroner has threatened him, hires lawyer Bob Regan as a secret bodyguard. Sure enough, Kroner turns up in Colby's room with a gun, and Regan kills him. Then Regan, who sticks around to romance Colby's secretary Noel, begins to suspect he's been used.
When he learns his days are numbered old count Hervé de Kéraudren decides to hide in a secret alcove and to die there, just to annoy his heirs. As a result of his body not being found the latter will have to wait for five years until they can inherit the count's money. Very upsetting indeed, all the more as they are required to keep up the Kéraudren estate in the meantime. To collect money, nephews and nieces organize a Son et Lumière show at the manor while busily looking for the missing corpse. But, unexpectedly, they get killed in turns. Murders or accidents Jean-Marie, his fiancée Micheline and his cousin Edwige investigate and finally succeed in exposing the culprit. And, the count's body being found by chance, all goes back to normal.