The challenges and rewards of caring for someone with dementia ⁣ ⁣ #TheCage #Drama #Crime #SheridanSmith #Dementia⁣ ⁣ If you've been affected by themes in this show, head to bbc.co.uk/actionline for information and support. ⁣ ⁣ The Cage: When Leanne (Sheridan Smith) and Matty (Michael Socha) discover they are both robbing from the safe at the inner-city casino they work in, their lives are set on a collision course; with each other, the local gangster they're stealing from, and the police.