Minor Role (uncredited)
Un hombre que va a ser ejecutado, acusado del asesinato de su hermano, recibe la visita del Dr. Griffin, hermano del científico que años atrás descubrió la fórmula de invisibilidad. El condenado huye gracias a que se hace invisible, y trata de demostrar su inocencia, pero la locura que va unida a los efectos secundarios de la fórmula para ser invisible harán acto de presencia...
State Trooper (uncredited)
A Nick y a Nora Charles, un matrimonio muy excéntrico, les apasiona ejercer de detectives aficionados. Un día, la familia Charles, después de pasar un fin de semana fuera, regresa a su casa en compañía de un industrial de Long Island que sospecha que alguien quiere matarle, e inmediatamente su temor se hace realidad. Lo peor es que Nick está entre los sospechosos, pero Nora tiene sus propias ideas sobre el caso y se escabulle dentro de un club para buscar pistas.
Vani Martin
Reporter Sue Walker has too much inside information on the local gambling rackets to suit her sweetheart, Detective Lieutenant Jerry Brown, chief of the police Homicide Squad. When the call comes in that there has been a killing at Lefty Ross' place, a notorious gambling joint, Jerry is peeved when Sue beats him there. He discovers that gambler Jimmy Clark was killed as he answered a telephone call, and his body is riddled with bullets but Jerry can't find any weapon. Sue is amazed to see Gloria Cunningham there. Gloria's father is one of the town's leading reformers and she is engaged to District Attorney Richard Sutton. Ross decides to give Sutton all the information he needs and makes an appointment to go to Sutton's home. Once there, Ross is called to the telephone before he can give any information, and is killed in the same mysterious manner as Jimmy Clark.
