The Shanghai Cobra
The Shanghai Cobra is a 1945 mystery film directed by Phil Karlson and starring Sidney Toler as Charlie Chan.[1][2] When three bank employees are killed with cobra venom, Detective Chan recalls an oddly similar case ten years earlier in Shanghai.Chan has a second reason to be interested...the bank is the central depository for radium distribution for a good part of the United States.Tommy Chan and Birmingham, usually against orders, spend a goodly amount of time prowling these tunnels.Oddly, it is concealed behind a bookcase on the second floor of the bank building...in an office housing a full chemical laboratory.