The Peacock Fan is a 1929 American silent mystery film directed by Phil Rosen and starring Lucien Prival, Dorothy Dwan and Tom O'Brien. A review in Variety described it as a "fairly interesting melodrama of the who-killed-Reginald-Moneybags school".
In China a peacock fan causes a jealous husband to murder his wife. Many years later in the United States, a wealthy collector who now owns the fan is found murdered. Doctor Chang Dorfman takes over the investigation and assembles the twelve likely suspects together.