Self-harm and suicide are major public health problems for teenagers. Although boys are by no means immune, one in three UK teenage girls is now said to report symptoms of anxiety or depression. A&Es describe a surge in teenagers who seek treatment for their self-harming injuries, and they are predominantly girls. This episode tells the stories of two teenage girls who have repeatedly harmed themselves, and shows the support they receive from Tavistock clinicians. Demi, who's 17, has been admitted twice to psychiatric inpatient units after attempts to take her life. She is desperate not to go back.