Charlie Chan in Honolulu (1938)
While Charlie is distracted with the birth of his first grandchild, son Jimmy impersonates his father in order to investigate a murder aboard a freighter in the harbor
The Trap (1946)
When a troupe of showgirls with their impresario and press agent vacation at a Malibu Beach resort, two of them are garroted Charlie takes on the case assisted by Number Two Son Jimmy and faithful chauffeur Birmingham Brown