After her eleven year old daughter Cathy befalls a freak accident, Danielle is in a state of catatonic paralysis. Daily, she hears her daughter's voice, telling tell her that her disappearance was no accident. A multitude of supernatural event make progressively Roger, the father, and Fanny, wife of service, become aware of a presence in the house. One night, Roger and Fanny are persecuted by the presence of a devilish laugh that resembles the girl.

A toxic spill revives a beautiful, dead heiress who, with the help of her childhood friend, must quench her insatiable thirst for blood.

Messalina (played by gorgeous Betty Roland) is a power-hungry nymphomaniac who will stop at nothing to become Empress of Rome. She brings herself to the attention of Caligula by battling in the gladiator arena and it is not long before she achieves her goal, upsetting the Emperor's youngest sister Agrippina, who hopes that her son Nero will eventually become ruler of Rome. Agrippina successfully plots Caligula's downfall, but Messalina rains on her parade by immediately jumping into the sack with his successor, Claudius. But naughty old Messalina can't commit herself to one man, and shags everyone in sight, including a grotesque, but well-endowed, frequenter of brothels, a randy midget, her eunuch(!?!?) and an ex-lover. When she ends up pregnant, and it is obvious that the father is not Claudius (since he has been away fighting in foreign lands), Agrippina finally sees her opportunity to be rid of her nemesis once and for all.

A runaway criminal breaks into an eerie chateau, taking its two frightened chambermaids hostage. As night falls, a group of mysterious aristocratic women arrive and the criminal begins to realize the women are hiding a sinister secret.