After his father's will stipulates he must marry Bella Wilfer to inherit his fortune, John Harmon fakes his death to avoid the marriage and the threats on his life. He returns as John Rokesmith and becomes the secretary for the Boffins, who inherit Harmon's estate following his alleged death.

1946 film by Johan Jacobsen

1943 film by Lau Lauritzen

1940 film by Arne Weel

1943 film by Bjarne Henning-Jensen

In broad daylight, a man runs at full speed across the Town Hall Square wearing a dress and white. People stare in amazement as he tries to grab a seat in a phone box to make a call. However, his story is even more incredible than they can imagine.

A woman is found strangled in her shop. Shortly after, another murder is committed. Perhaps the most terrifying is that the both girls' name is Sonja. The police is convinced it's the same killer and at each scene is heard a woman singing the same song. A song which is soon dubbed the 'murder melody.'

On New Year's Eve, the convicted murderer, Strong Henry, escapes from prison and collects his son from the orphanage. When he breaks into a local manor to get some milk for his child, he is surprised by a young woman, Eva. Out of pity, she decides to help the stranger, but unfortunately some of the manor's other occupants wake up and call the police. Fourteen years later, Henry is released from prison. Convinced that Eva betrayed him, he sets out to take revenge and find his son.