Both Scotland Yard and an amateur American sleuth are tracking a master criminal known as The Frog. This moniker refers to the bulging-eyed mask worn by the evildoer, and is reflected by the frog icons painfully tatooed onto the forearms of his henchmen. The trail leads to the country manor of an enigmatic, steely-eyed nabob, whose repressed son has eyes for the artistes at the Lolita cabaret, and whose lovely daughter captures the fancy of both the American playboy and the villain himself. Murder, kidnapping and seduction ensue.
It is a love story between a prostitute and an artist. It was one of the first German films to break several taboos: nudity, suicide and euthanasia. In the Germany of the '50s, this caused a lot of negative reactions by the politicians and the Roman Catholic Church. The opposition reached the degree of banning the film and scandalizing it which paradoxically made it one of the landmarks in the history of film.
