Decently entertaining old-fashioned mystery headlining the inimitable screen presences of Peter Lorre (in a rare, likable "good guy" role) and Sydney Greenstreet. It's got some nice atmosphere and an amiable sense of humor, even if it is a bit too genteel for its own good at times. Only a minor classic, but it is fun to see iconic character actors putting their unique spin on leading-man territory.
I have to seriously restrain myself from giving this movie 4 stars because the Lorre/Greenstreet pairing is always such a delight to behold that the surrounding film seems merely incidental. It captures much of that seedy european decay that Reed will later nail in The Third Man.