Threatened by lawsuits for her debts, a young lady finds out about a bondage club having an auction one night, where a quarter of the proceeds go to charity, one quarter to the club and the remaining half to the person who is auctioned off. Having played with tying herself up, she is fascinated with the idea of being bound so she has to struggle to free herself and it seems like a fun way to come up with the money. Even better, just the opening bid would pay her enough to be debt free.
However once she is at the club, the owner realizes he can make way more than the one night auction off of her and slips her a contract that states her sale is permanent. Having read everything online, she doesn't read the contract and just signs it. Just before the sale, she is handed rope and told to tie herself up and she does so, using nice tight knots that she won't be able to work free, unlike what she is used to. When she is done, the club owner himself ties her wrists and arms along with gags her, and then she finds out she is on the permanent sale stage, on display for buyers who will make certain she never knows freedom again.