Umberto Lenzi's Seven Blood-Stained Orchids (1972) is sometimes seen as a very late krimi but it's more of a giallo. It was based on Cornell Woolrich’s novel Rendezvous in Black. It's fairly clued and it ticks the right giallo boxes.
My review: https://princeplanetmovies.blogspot.com/2023/07/seven-blood-stained-orchids-1972.html
@d4doome some of his mobies are just amazing and iconic.