At some point, Maureen's son Ian married Lauren Riggs, but Maureen remained suspicious of her. In 2006, Lauren gave birth to a boy named Rhys. In August 2007, Lauren started smoking cannabis and attacked Ian during a violent psychotic episode, so Maureen decided to intervene and had Lauren sectioned at the Riverbank Psychiatric Unit. Whilst Lauren was detained, Maureen helped Ian take care of Rhys.
On 15 September 2007, Lauren escaped from the psych unit and climbed through Rhy's window to take him. Maureen ordered her to leave before she alerted the police, but Lauren pushed her into a light fixture and escaped with Rhys. Ian followed Lauren to a construction site, and she violently attacked him with a metal pole. He managed to call Maureen, and she called for an ambulance. As the paramedics moved Ian into an ambulance, Maureen apprised them of Lauren's psychosis and urged them to find Rhys. At Holby City Hospital's emergency department, Maureen confronted Lauren, who had been admitted following a suicide attempt, in a cubicle, and Lauren viciously attacked her; the medical staff subsequently restrained and sedated Lauren.
In the absence of any medical staff, Maureen secretly took a drugged Lauren to the construction site to reveal Rhys' whereabouts. Maureen rushed towards a cement mixer after hearing a baby crying, but her head was hit by an overhanging excavator bucket, knocking her unconscious. She was taken back to the ED, but the resus team concluded that her injuries were too severe, and Maureen was pronounced dead. (CAS: "Meltdown")