The Killers Are Our Guests (1974)

In the city of Milan, a criminal group rob a jewellery shop named Joyeria Jewellery. And, in spite of an adequate success in the robbery itself, some unexpected accidents happen to the members, and three of them (including the injured member named Franco) are obliged to find and go to the house of Dr. Guido Malerva. But, mainly after the late arrival of another member named Eddie, some troublesome people begin to visit the house. IMDB