The radio play was created based on the famous detective story "Copper Beeches" by A.K. Doyle. The famous detective Sherlock Holmes is approached by a young girl with a seemingly trifling problem. It seemed strange to her the conditions under which she was accepted as a governess in one respectable house. However, the girl's suspicions are not at all groundless. And Sherlock Holmes, along with his faithful assistant Dr. Watson, brilliantly unravel the master of the house as always.