A furious Myra (Nicole Barber-Lane) is transferred to Mitzeee's prison next month, ready to make life hell for the troubled glamour girl.
Myra's daughter Mercedes (Jennifer Metcalfe) recently framed Mitzeee for a shocking attack by stabbing herself. As Myra is convinced that Mitzeee is guilty, she is grateful for the opportunity to get revenge.
Shenton told All About Soap of the storyline: "I think at that point Mitzeee just wonders if things could get any worse for her. She's already having a really rough time, and then Myra shows up. It's a very calculated decision on Myra's part to get moved to the same jail."
She continued: "Myra will battle tooth and nail for her daughter, and you can just imagine the fighting spirit she has. There's a lot of serious verbal scrapping between Myra and Mitzeee, which in some ways is worse than a punch-up."
To make matters worse for Mitzeee, her cellmate Shayne is threatening her in a devious bid to secure some of Riley Costello's cash. However, when Mitzeee begs Riley for help, she doesn't get the response she had hoped for.
Shenton added: "He's not as supportive as she would like him to be, mainly as he's dealing with his own problems back in the village. It's pretty devastating for Mitzeee of course, because she's still madly in love with Riley. She's hoping he'll have a change of heart."
Hollyoaks airs weeknights at 6.30pm on Channel 4, with first look screenings at 7pm on E4.