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.

Mary Whitman, an old friend of Charlie's in Reno for a divorce, finds herself accused of murdering the woman her husband planned to marry after the decree became final.

Charlie's investigation of a phony psychic during the 1939 World Exposition on San Francisco's Treasure Island leads him to expose a suicide as murder.

While in Paris for a reunion on the eve of World War II, Charlie finds that the murder of a hated businessman leads him to a conspiracy to smuggle arms to Germany.

Inspector Chan investigates a group of travelers, one of whom is a saboteur.

Charlie tries to discover the identity of a strangler who strikes multiple times on a cruise ship bound from Honolulu to California.

An escaped convicted murderer hides out at a New York wax museum where he hopes to get plastic surgery, which will help him revenge himself on Charlie Chan.

When Charlie's old friend from Scotland Yard is murdered when they attend a police convention in New York, Chan picks up the case he was working on.

A treasure map in four pieces, the ghost of a hanged pirate, a talking parrot, and a ship full of red herrings complicate Charlie's search for a murderer on board a docked ship.

On the trail of a singer who killed the man she loved in Honolulu, Charlie finds her stabbed to death when he ultimately catches up to her in Rio.

Charlie Chan investigates apparent poisonings at a mystery mansion in the Mojave Desert.

Charlie Chan is an agent of the U.S. government assigned to investigate the mysterious death of an inventor.

Charlie Chan investigates the locked-room murder of a chess expert.

Charlie searches for a murderer amidst numerous ghosts conjured up by a strange variety of spiritualists and occultists.

Eccentric scientist Harper lives in a spooky mansion with all the trimmings: hidden lab, secret panels, inscrutable butler, and greedy relatives with unusual talents. When Harper seems to be murdered, Charlie Chan (with the uninvited help of No. 4 son) tries to answer such questions as Where's the body? How can a dead man walk? And how can a secret murder be done in full view of detectives and witnesses?

Charlie discovers a scheme for the theft of government radar plans while investigating several murders.

Someone is attempting to steal radium stored in a bank. Death by cobra venom connects a number of murders. Charlie investigates.

Chan is faced with suspects in a stolen atomic bomb formula case, that are being killed with bullets that are not fired from a gun.

A public defender enlists Charlie to exonerate one of his clients, an ex-con falsely accused of bank robbery and murder, scheduled for execution in nine days.

Charlie investigates murders connected with insurance fraud. This one is set in San Francisco's Chinatown.

A treasury agent on the trail of counterfeit money confides to fellow ocean liner passenger Charlie Chan that there have been two attempts on his life.

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.