Collection of six adventures for the famous Honolulu detective Charlie Chan. In 'Charlie Chan and the Chinese Cat' (1944), a murder takes place apparently in a locked room, and Chan's efforts to unravel the mystery lead to a confrontation in a crazy house of fun. In 'Charlie Chan in the Secret Service' (1944), Chan joins forces with the government to investigate the mysterious death of a famous inventor. In 'The Jade Mask' (1945), a murder takes place in a country mansion complete with hidden passages, mysterious relatives - and even a snooty butler. In 'Meeting at Midnight' (1944), ghosts are set loose when Chan seeks out a murderer among a group of occultists. In 'The Scarlet Clue' (1945), the theft of some top secret papers sparks off a murder investigation. Finally, in 'The Shanghai Cobra' (1945), a spate of cobra bites appear to be related to the attempted theft of a deadly substance - but can Chan uncover the link?