GIALLO A OSLO is set at the end of 1977 when a rural man comes to the city with doubts about his daugther's apparent suicide. The inquiry takes him on a journey thru the seedier parts of the city in a fashionably twisty plot until the shocking truth is revealed. Dagmar, a young student from the countryside, dies in mysterious circumstances in the country’s capital. The police rule her death a suicide and see no reason to open a murder investigation. Dagmar’s father arrives in the city and soon realises that there is more to his daughter’s death than first met the eye. He gets to know his daughter’s friend Edwige, and together they begin their own investigation. The clues lead to the enigmatic German porn king Fritz, but lurking in the shadows is a mysterious figure in black gloves who believes there is far too little blood spilled on the streets of Oslo.