Watched this movie again last night or early morning... By far IMHO a decent enough film to compare with many a Monogram Picture and plot while a television made movie pretty darn good. Kind of a cross between the films and the cartoon series. I could have seen a resurrection of the series here, but it didn't happen.

The "Return of Charlie Chan" could have made it as a great mystery TV series during the 1970s.

Producer Jack Laird has a fine list of writing credits related to the mystery genres, i.e. Night Gallery, Kojak, and Switch. Gene R. Kearney also has a great list of writing and directing credits. Director Daryl Duke was a native of Vancouver, where the film was shot. His credits included: Night Gallery, Circle of Fear, and The Thorn Birds. This film really could have worked as a weekly TV series. All the elements were there. Too bad it wasn't a go.