Fourteen-year-old Marika was placed in a social care institution after being raped by her own father, and her mother died when she was four. By an administrative mistake, however, the girl is put into the Institute for Mentally Disabled Girls at Sance. From the very first day, she tries to remind the staff that she does not belong in this building and should be placed in a children's home in Hradci. There are hard punishments for mentally handicapped girls there. The headmaster of the institute is completely unaware of what is happening in his institution.