Young mother and former GB youth swimmer, Alexis Quinn, agrees to enter NHS England psychiatric care following a family tragedy. She could never imagine that her three-day admission will turn into a three-year ordeal. Then undiagnosed with autism, and often the subject of 24-hour surveillance as well as long periods in solitary confinement, Alexis descends to the darkest reaches of locked-in, psychiatric care. There, she encounters the kind of threat she never could have imagined in a secure mental health hospital. In a bid to break free, Alexis plots a daring escape. Making it back to her daughter, however, will pit her against some of the most powerful institutions in the State, including the police.

This episode contains discussions about sexual assault.

Narrated by Nicholas Pinnock (Top Boy, Django, For Life). This is episode 1 of Patient 11, a new investigative podcast from Sky News and the Independent. To hear all episodes now, follow Patient 11 on your favourite podcast player.