Nina's husband arrives home from a week at conference, unaware that she has found out about his affair. Nina plays the dutiful wife and hubbie is excited about seeing the finished extension to the house and is eager to be led down blindfolded. He is shocked when he finds it fitted out as a dungeon, tied up and helpless, he is confronted with wife's knowledge. Unable to escape, Nina shows her new dominant streak and brings in Mistress Sidonia, her new teacher, to break him down into a slave. Mistress Nikki joins in to make this a real three mistress punishment he will never forget.