Movie, 1919
The Secret of the American Docks
IMDb 7.2, 69 min, Mystery, Germany
James Mistoll, one of the owners of a factory, and working on a process to turn copper ore into radium, falls from a window on the fourth floor and dies; This was no accident, but a murder. A detective sends his assistant, Barnes, to investigate and soon the number of suspects from within the company multiplies.
