A scientist working on a revolutionary invention to safeguard Allied shipping from U-boat torpedoes receives Secret Service protection, but decides to host a cocktail party on the first floor of his Washington mansion, despite having foreign nationals with questionable pasts as guests. When the scientist is mysteriously electrocuted, detective Charlie Chan and his team must unravel the web of suspects and misdirection to uncover the killer.
Charlie Chan in the Secret Service
The renowned detective Charlie Chan takes on a new case, tasked by the U.S. government to uncover the truth behind the suspicious death of a brilliant inventor.