A Victorian aristocrat buys a former madhouse and converts it into a love nest. He intends to seduce Alice, the object of his desire, but is unaware that Jack the Ripper lives in the secret passages lining the building. After receiving the help of a brothel madame (Diana Dors) he tries to seduce Alice (Sue Longhurst) with hypnotism, aphrodisiacs and various seduction devices. All his efforts though end in hilarious disaster as this saucy 1970's romp unfolds. Eventually Jack gets more than he bargained for as Alice turns the tables on him and reveals the true hot blooded woman under her prim exterior.