The Patient in Room 18 (1938)

Lance is sent to the hospital to recuperate from a nervous breakdown. At the hospital, Sara is his nurse and she still holds a grudge from the last court case. At the hospital, a wealthy patient has just donated $100,000 worth of radium to be used on his skin problem. But late that night, he is murdered and the radium is stolen. Everyone has a motive except for Sara and Lance as they were locked in his room during the murder. As the bodies pile up, Sara and Lance try to solve the case as Foley is clueless.