Clue № 13

Investigator Anna Sterkhova arrived in St. Petersburg to inherit after the death of her aunt Rufa. She had worked in the theater all her life and took home discarded costumes. Anna decided to donate them to a museum, and soon... she received a call from there informing her that they found an old photo behind the lining of one of the costumes. After conducting research, Anna realized that this was a post-mortem photograph of a girl, imitating the image of a living person. Such practice was common in the early last century, but this picture was clearly taken much later... Anna learned that the costume belonged to a talented actress Tamila Teplakova, but she could not speak to her. It turns out that she died right during a performance, falling into an open trapdoor on stage that had been accidentally left open! This happened around the same time the frightening photo was taken…