During her early appearances on the show, Kelly had a hostile relationship with her sister-in-law Veronica Fisher (Maxine Peake), who was the one that eventually discovered her addiction to heroin, and helped Kelly get clean by locking her in the bathroom against her will, she would later return to Chatsworth looking for a room to rent and Frank Gallagher (David Threlfall) used it as opportunity to collect cash from her, and allows her to live with him and Sheila Jackson (Maggie O'Neill) but little do they know that's she's a prostitute and kick her out because of it.