AllMovie

The second film in the mystery series about a Chinese sleuth, this one concerns the theft of the "Eye of the Daughter of the Moon," the largest star sapphire in the world, which is stolen from China and turns up in the possession of an unscrupulous gem collector, who receives a death threat containing clues to the potential murderer's identity and calls in Mr. Wong. During a game of charades, the lights mysteriously go out and the collector is shot, and the chase is on.