Mysterious Intruder (1946)

Private detective Don Gale (Richard Dix, Cimarron) is contracted by an old record shop owner to track down a young girl who used to live in his neighborhood and is in line for a fortune. But when the old man is murdered, Gale is accused, leading him on an adventure filled with double-crossing, false identities, a valuable record collection and murder. Gale uses every trick in the book to solve the case, and not every way is legal.