The local police approach Rolph and ask him to work together with them to lure Herman on board the barge using Lora as bait.

Rolph and Lora manage to overpower Herman and throw him overboard where he is dragged under the barge into one of the side paddles where he is killed.

At the end of the film, Lora leaves with the police, while Rolph asks her to return to him one day to live with him on his barge on the European rivers.

Fisher, who was Austrian and did not serve in the army during the war, said in response, "Perhaps Miss Greco does not like me because I am a dedicated actor not interested in behaving like a film star, as she is.

[9] The Monthly Film Bulletin wrote: "Whirlpool's cast and setting continue the Rank Organisation's pursuit of the European – and specifically the West German – market.

But a series of postcard studies of the Rhine, a glowering performance by Juliette Greco and a relentlessly stolid one by O. W. Fischer are almost all the production has to offer.

Shots of the murderous Herman skulking along the river bank are almost arbitrarily inserted into the travelogue Rhine journey and the tone of the whole adventure is lethargic and insipid.