Tih Minh

Tih Minh is a 1918 French film serial directed by Louis Feuillade.

Athys and his servant, Placide, soon become involved with an international band of jewel thievescumspies that include among its members a mysterious noble person, a hypnotist, and, an evil doctor who renders their victims amnesiacs.Unknown to Athys, he has returned to France with a book that contains a coded message revealing the location of treasure and sensitive government intelligence. This makes him and Tih Minh the target of the spies who will stop at nothing to obtain the book. ........

Source: Wikipedia