In post-WW2 Shanghai, expatriate Westerners are detained in the Waldorf Hotel until the Communists can identify a suspected spy among them but some prisoners try to outwit the interrogators ... Read allIn post-WW2 Shanghai, expatriate Westerners are detained in the Waldorf Hotel until the Communists can identify a suspected spy among them but some prisoners try to outwit the interrogators and the armed guards and flee.In post-WW2 Shanghai, expatriate Westerners are detained in the Waldorf Hotel until the Communists can identify a suspected spy among them but some prisoners try to outwit the interrogators and the armed guards and flee.