Boil the spaghetti according to the instructions on the box.
In a sauce pan melt the butter.
While stirring add the flour.
Add the cream and the saffron and mix together.
In a frying pan heat up the olive oil.
Press the garlic clove in a garlic press and add in the oil.
Add the salt and the shrimps and stir for a few minutes.
Serve the Spaghetti, sauce and shrimps.