Mary later has a relationship with the married Mehmet Osman (Haluk Bilginer), but he is only using her to win a bet with his brother Ali Osman (Nejdet Salih). After months of chasing, Mehmet finally manages to have sex with Mary, and he triumphantly claims his winnings from his brother. However, Mary witnesses his gloating and she furiously vows to get revenge. After sabotaging his car, she proceeds to make regular crank calls to his cab firm. Things then get worse for Mary when she quits her job at the canteen after she is promoted but afraid to admit that she cannot read. Once again she finds herself desperate for money. By December 1986, Mary is persuaded to turn to prostitution by Pat Wicks (Pam St. Clement), who is being pimped by Mehmet. By early 1987, Mary has flung herself wholeheartedly into prostitution, much to the concern of everyone on the Square. Pat has a change of heart and starts refusing to give Mary any more contacts, so Mary decides that she will find her contacts on her own. She starts making regular trips to Central London and comes home late one night covered in bruises and blood. Initially, Mary claims that she had been beaten by the Walford attacker — a man who had assaulted several other women in the area — but she later confesses that she had been beaten by other prostitutes for trying to poach their clients.