Mental - Season 1 Episode 1 Big Fish

Nico is a girl who is unable to fit in at school because she has constant anxiety attacks and her only thought is to leave for London to attend a music school. During the class performance she has a hallucination and for this reason she is taken to the Argo psychiatric clinic. At first she thinks her stay will be short, but soon she realizes that it won't be. Nico runs into other kids who, like her, have "something wrong".