AllMovie

Most of Berlin After Dark is set in that city's Elysium amusement park, at the time of a hotbed of criminal activity. The owners of the Elysium have a falling out, and before long one of the two men turns up dead. Affable, cigar-smoking detective Harry Ramsay (Paul Rehkopf) attempts to solve the murder, with no small help from his wife Edith (Grita Lay). The principal suspect is Fat Frank (Fritz Kamper), owner of one of the park's gambling concessions. But this solution is a bit too easy, as proven in the final reels when a hitherto undetected culprit steps forward to take the blame.