Everyone believes that the brilliant scientist Michael Harsh committed suicide. Harsh’s invention was supposed to revolutionize the world of science, but the fruits of his work disappeared without a trace... Miss Maude Silver, an amateur detective, has no doubt: a murder occurred. Anna Joslyn is beautiful and rich the woman disappeared under mysterious circumstances, and her husband Philip inherited all the money. Three years later, he was planning to marry again, but his plans were interrupted... by Anna herself, who unexpectedly returned home. Philip, however, refused to recognize the woman calling herself Anna as his wife and declared an impostor. And soon Anna’s friend, who could help resolve their dispute, is killed...