[Daemonia]

The ones which are particularly strong visually from my list would be (going purely from memory):

The House with Laughing Windows
Deep Red
Bird with the Crystal Plumage
Opera
Tenebrae
The Strange Vice of Mrs Wardh
Your Vice is a Locked Room and Only I Have the Key
Perfume of the Lady in Black
Short Night of the Glass Dolls
Lizard in a Woman's Skin
The Night Evelyn Came Out of the Grave
Death Walks at Midnight
Blood and Black Lace
A Bay of Blood
5 Dolls for an August Moon
The Girl Who Knew Too Much
Photos of Gioia

And one I forgot to mention earlier, which is visually very striking, is All the Colors of the Dark. An absolute must-see IMO.

Btw - all the above are available on DVD and a couple on BD too.

I'm still working my way through all the Giallos, so if I come across any that I think fit the bill, I'll post in this thread.