Vasyl Velychko has been tied to a bench on a baking hot day for hours, but no-one hearing his screams will untie him.
The 18-year-old is one of thousands of disabled people living in Ukraine's orphanages. BBC News has gained access to five institutions and found widespread abuse and mistreatment - including teenagers restrained and adults left lying in cots for years.
Human rights investigators say Ukraine should not join the European Union until it closes these institutions.
Before the war with Russia, the Ukrainian government said it would reform the system.