His family slain by British troops during the Boxer Rebellion, a grief-maddened Chinese intellectual (Warner Oland) swore revenge... and a generation later in London, hed make his missionarys daughter ward (Jean Arthur) a tool in revenge against the regiment. The Mysterious Dr. Fu Manchu, the talkie bow for Sax Rohmers mastermind, co-stars O.P. Heggie as Nayland Smith and Neil Hamilton as Petrie. Then, the thought-poisoned doctor (Oland) offers up a series of ingenious deathtraps for Petrie (Hamilton) and Smith (Heggie) in The Return of Dr. Fu Manchu; Arthur returns as well. 153 min. Total. Standard; Soundtrack: English.