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Ein Seltsamer Gast (A Strange Guest) was based on a novel by Kurt Heuser. The story concerns the theft of a valuable necklace, which leads to a baffling murder. Alfred Abel heads the all-star cast as Bruneaux, a mysterious art dealer whose connection with the robbery and murder are made clear only in the final reels. Most of the action takes place in a "respectable" Parisian hotel room, which by film's end has more traffic than the Champs Elysses. Given the methodical nature of mid-1930s German films, it's no surprise that the country turned out so many above-average murder mysteries.