The TV series "Undiscovered Talent" is a detective story about a theatrical actress who unexpectedly discovers her abilities as an investigator. In a small town on the Volga River, a maniac is on the loose: he kills actors from the local drama theater during performances, but the police cannot catch him. The only thing known is that the crimes began with the arrival of a new director, Vishnevsky, in the troupe. Detective Butko interviews all the witnesses. His attention is drawn to the prima ballerina Marina Maiskaya, who demonstrates extraordinary talent.